I-heptomino: Difference between revisions
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{{Pattern | |||
|name = I-heptomino | |||
{{ | |||
| | |||
|pname = iheptomino | |pname = iheptomino | ||
|c = 7 | |||
|bx = 4 | |||
|by = 4 | |||
|l = 247 | |||
|f = 39 | |||
|mcps = 7 | |||
|discoveryear = 1971 | |||
|rulemin = B3/S23 | |||
|rulemax = B3/S23 | |||
|rulespecial = [[Conway's Game of Life|Conway Life]] | |||
|isorulemin = B3/S23 | |||
|isorulemax = B3/S23 | |||
|synthesis = 3 | |||
|rle = true | |||
|viewerconfig = #C [[ THUMBSIZE 2 Z 20 HEIGHT 480 GPS 10 AUTOSTART PAUSE 4 T 100 Z 6 LOOP 300 ]] | |viewerconfig = #C [[ THUMBSIZE 2 Z 20 HEIGHT 480 GPS 10 AUTOSTART PAUSE 4 T 100 Z 6 LOOP 300 ]] | ||
}} | }} | ||
'''I-heptomino''' is the name given by [[Conway]] to the heptomino shown in the infobox. After one generation, this converges to the same evolutionary sequence as the [[H-heptomino]]. The name I rather than H was chosen as standard for this sequence because conduits use one-letter names and H is the Herschel. | |||
The longest-lasting active region is the standard evolutionary sequence of a [[Herschel]], at the bottom of the pattern. | The longest-lasting active region is the standard evolutionary sequence of a [[Herschel]], at the bottom of the pattern. | ||
Revision as of 13:14, 15 June 2023
| I-heptomino | |||||||||
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| Pattern type | Miscellaneous | ||||||||
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| Number of cells | 7 | ||||||||
| Bounding box | 4 × 4 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | 1971 | ||||||||
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I-heptomino is the name given by Conway to the heptomino shown in the infobox. After one generation, this converges to the same evolutionary sequence as the H-heptomino. The name I rather than H was chosen as standard for this sequence because conduits use one-letter names and H is the Herschel.
The longest-lasting active region is the standard evolutionary sequence of a Herschel, at the bottom of the pattern.
In the following examples, on the top, there are two six-cell polyplets that follow the I-heptomino sequence. The one on the left becomes the I-heptomino itself, while the one on the right follows a slightly different sequence. On the bottom, there are two houses with one cell removed each; both follow the I-heptomino sequence.
| (click above to open LifeViewer) RLE: here Plaintext: here |
The century sequence has a phase around generation 53 that is an I-heptomino sequence plus five stable objects (three blocks, a beehive, and a toad). The I sequence then hits the beehive, destroying the beehive and toad and leaving behind a blinker.
Hasslers
The I-heptomino sequence can be hassled in oscillators. Four examples are shown below. For all four, generation 4 is the pattern that the various predecessors in the I sequence typically converge to; this is done to show a variety of predecessors.
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Other uses
The I-heptomino sequence is a recognized conduit input and output, represented by the letter I.
See also
References
- ↑ AlbertArmStain (April 16, 2023). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
External links
- I-heptomino at the Life Lexicon