login
A273695
Number of 8-ary heaps on n elements.
3
1, 1, 1, 2, 6, 24, 120, 720, 5040, 40320, 181440, 1209600, 9979200, 95800320, 1037836800, 12454041600, 163459296000, 2324754432000, 19760412672000, 237124952064000, 3379030566912000, 54064489070592000, 946128558735360000, 17841281393295360000
OFFSET
0,4
LINKS
Wikipedia, D-ary heap
CROSSREFS
Column k=8 of A273693.
Sequence in context: A212310 A276842 A364428 * A177279 A173848 A154656
KEYWORD
nonn
AUTHOR
Alois P. Heinz, May 28 2016
STATUS
approved