A273694 Number of 7-ary heaps on n elements.

1, 1, 1, 2, 6, 24, 120, 720, 5040, 20160, 120960, 907200, 7983360, 79833600, 889574400, 10897286400, 81729648000, 871782912000, 11115232128000, 160059342643200, 2534272925184000, 43444678717440000, 798295971432960000, 8781255685762560000, 134645920515025920000

Offset: 0

Author

Alois P. Heinz, May 28 2016

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..476
• Wikipedia, D-ary heap

Crossrefs

Column k=7 of A273693.