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 A115636 A divide-and-conquer number triangle. 3
 1, 1, -1, 4, 0, 1, 4, 0, 1, -1, 4, -4, 0, 0, 1, 4, -4, 0, 0, 1, -1, 16, 0, 4, 0, 0, 0, 1, 16, 0, 4, 0, 0, 0, 1, -1, 16, 0, 4, -4, 0, 0, 0, 0, 1, 16, 0, 4, -4, 0, 0, 0, 0, 1, -1, 16, -16, 0, 0, 4, 0, 0, 0, 0, 0, 1, 16, -16, 0, 0, 4, 0, 0, 0, 0, 0, 1, -1, 16, -16, 0, 0, 4, -4, 0, 0, 0, 0, 0, 0, 1, 16, -16, 0, 0, 4, -4, 0, 0, 0, 0, 0, 0, 1, -1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 COMMENTS Inverse of A115633. Row sums are A115637. First column is A115639. LINKS EXAMPLE Triangle begins 1, 1, -1, 4, 0, 1, 4, 0, 1, -1, 4, -4, 0, 0, 1, 4, -4, 0, 0, 1, -1, 16, 0, 4, 0, 0, 0, 1, 16, 0, 4, 0, 0, 0, 1, -1, 16, 0, 4, -4, 0, 0, 0, 0, 1, 16, 0, 4, -4, 0, 0, 0, 0, 1, -1, 16, -16, 0, 0, 4, 0, 0, 0, 0, 0, 1, 16, -16, 0, 0, 4, 0, 0, 0, 0, 0, 1, -1, 16, -16, 0, 0, 4, -4, 0, 0, 0, 0, 0, 0, 1, 16, -16, 0, 0, 4, -4, 0, 0, 0, 0, 0, 0, 1, -1, 64, 0, 16, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 1, 64, 0, 16, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 1, -1, 64, 0, 16, 0, 0, 0, 4, -4, 0, 0, 0, 0, 0, 0, 0, 0, 1 CROSSREFS Sequence in context: A221275 A176803 A115715 * A292143 A281441 A213600 Adjacent sequences:  A115633 A115634 A115635 * A115637 A115638 A115639 KEYWORD sign,tabl AUTHOR Paul Barry, Jan 27 2006 STATUS approved

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Last modified July 27 07:36 EDT 2021. Contains 346304 sequences. (Running on oeis4.)