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A326510 Number of (binary) max-heaps on n elements from the set {0,1} containing exactly nine 0's. 2
1, 1, 2, 5, 12, 23, 44, 76, 131, 219, 390, 600, 971, 1469, 2424, 3328, 5090, 7138, 11160, 14397, 21237, 28018, 41944, 51464, 73734, 92806, 134244, 159128, 222578, 269926, 379520, 437776, 599719, 706183, 969590, 1095469, 1473434, 1694393, 2279460, 2532548 (list; graph; refs; listen; history; text; internal format)
OFFSET
9,3
LINKS
Eric Weisstein's World of Mathematics, Heap
Wikipedia, Binary heap
Index entries for linear recurrences with constant coefficients, signature (1, 2, -2, 3, -3, -8, 8, 1, -1, 6, -6, -11, 11, 16, -16, 6, -6, -28, 28, 14, -14, 0, 0, -14, 14, 28, -28, -6, 6, -16, 16, 11, -11, -6, 6, -1, 1, 8, -8, -3, 3, -2, 2, 1, -1).
CROSSREFS
Column k=9 of A309049.
Sequence in context: A116735 A096376 A357288 * A112287 A127787 A116733
KEYWORD
nonn,easy
AUTHOR
Alois P. Heinz, Jul 09 2019
STATUS
approved

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)