A273733 - OEIS

%I #6 May 28 2016 20:05:23

%S 1,1,1,1,1,1,2,3,4,5,6,12,18,24,30,36,72,108,144,180,216,432,648,864,

%T 1080,1296,2592,3888,5184,6480,7776,18144,31104,46656,64800,85536,

%U 186624,303264,435456,583200,746496,1586304,2519424,3545856,4665600,5878656

%N Number of permutations of n elements divided by the number of 5-ary heaps on n+1 elements.

%H Alois P. Heinz, <a href="/A273733/b273733.txt">Table of n, a(n) for n = 0..1000</a>

%H Wikipedia, <a href="https://en.wikipedia.org/wiki/D-ary_heap">D-ary heap</a>

%F a(n) = A000142(n)/A178010(n+1).

%Y Column k=5 of A273730.

%Y Cf. A000142, A178010.

%K nonn

%O 0,7

%A _Alois P. Heinz_, May 28 2016