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A326507 Number of (binary) max-heaps on n elements from the set {0,1} containing exactly six 0's. 2
1, 1, 2, 5, 9, 16, 27, 44, 68, 114, 156, 236, 325, 500, 622, 900, 1143, 1659, 1954, 2731, 3277, 4564, 5185, 7040, 8114, 10948, 12124, 16058, 17977, 23640, 25692, 33304, 36493, 46965, 50322, 64017, 69025, 87208, 92423, 115652, 123168, 153142, 160908, 198440 (list; graph; refs; listen; history; text; internal format)
OFFSET

6,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 6..10000

Eric Weisstein's World of Mathematics, Heap

Wikipedia, Binary heap

Index entries for linear recurrences with constant coefficients, order 21.

CROSSREFS

Column k=6 of A309049.

Sequence in context: A225596 A211881 A056870 * A014739 A290464 A335768

Adjacent sequences:  A326504 A326505 A326506 * A326508 A326509 A326510

KEYWORD

nonn,easy

AUTHOR

Alois P. Heinz, Jul 09 2019

STATUS

approved

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Last modified May 7 00:04 EDT 2021. Contains 343609 sequences. (Running on oeis4.)