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A256536
Corner sequence associated with A151723.
2
1, 4, 9, 18, 27, 36, 53, 78, 95, 104, 121, 150, 187, 220, 261, 318, 351, 360, 377, 406, 443, 480, 533, 618, 703, 752, 793, 866, 967, 1060, 1161, 1286, 1351, 1360, 1377, 1406, 1443, 1480, 1533, 1618, 1703, 1756, 1809, 1902, 2035, 2176, 2325, 2522, 2703, 2784, 2825, 2898, 2999, 3108, 3249, 3470, 3723, 3896, 4013, 4186, 4435, 4672, 4909, 5174, 5303
OFFSET
1,2
COMMENTS
Total number of ON cells after n generations in one of the outside corners of an infinite hexagon-shaped structure on hexagonal grid.
For an animation see "The movie version" in Links section.
Partial sums of A256537.
See also the Formula section in A256537.
Compare A256138.
CROSSREFS
KEYWORD
nonn
AUTHOR
Omar E. Pol, Apr 01 2015
STATUS
approved