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A342276
First differences of A342272.
1
1, 1, 2, 0, 0, 4, 4, -4, -4, 4, 6, 4, -2, 4, 8, -12, -12, 4, 6, 4, 0, 8, 16, 0, -18, -4, 16, 14, -4, 4, 12, -30, -28, 4, 6, 4, 0, 8, 16, 0, -16, 0, 20, 20, 4, 4, 24, -8, -50, -20, 16, 14, 4, 16, 40, 16, -40, -28, 28, 38, -6, 0, 14, -68, -60, 4, 6, 4
OFFSET
0,3
COMMENTS
It would be nice to have a formula or recurrence for any of A170899, A342272-A342278, or any nontrivial relation between them. This might help to understand the fractal structure of the mysterious hexagonal Ulam-Warburton cellular automaton A151723.
LINKS
CROSSREFS
Sequence in context: A137828 A264655 A264476 * A137505 A107498 A094295
KEYWORD
sign
AUTHOR
N. J. A. Sloane, Mar 14 2021
STATUS
approved