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1, 1, 5, 1, 7, 3, 15, 1, 7, 6, 30, 5, 26, 7, 35, 1, 7, 6, 30, 8, 48, 15, 71, 7, 33, 18, 86, 14, 70, 17, 81, 1, 7, 6, 30, 8, 48, 17, 81, 9, 50, 29, 141, 25, 131, 30, 152, 6, 27, 20, 96, 25, 147, 44, 208, 17, 81, 42, 198, 32, 158, 37, 173, 1, 7, 6, 30, 8
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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2,3
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COMMENTS
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This is the number of new cells turned ON at the n-th generations in a 45-degree sector of the knights-move analog of the Ulam-Warburton cellular automaton defined in A319018.
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LINKS
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EXAMPLE
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This sequence may be redrawn as an array with rows of lengths 1, 2, 4, 8, 16, ...:
1,
1, 5,
1, 7, 3, 15,
1, 7, 6, 30, 5, 26, 7, 35,
1, 7, 6, 30, 8, 48, 15, 71, 7, 33, 18, 86, 14, 70, 17, 81,
1, 7, 6, 30, 8, 48, 17, 81, 9, 50, 29, 141, 25, 131, 30, 152, 6, 27, 20, 96, 25, 147, 44, 208, 17, 81, 42, 198, 32, 158, 37, 173,
...
See A322048 for the final element of these rows; see A322049 for the sequence to which the rows converge, with additional formulas for the n-th element of each (sufficiently long) row. - M. F. Hasler, Dec 18 2018
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PROG
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(C#) See Links section.
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CROSSREFS
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KEYWORD
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nonn,tabf
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AUTHOR
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STATUS
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approved
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