OFFSET
0,3
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..450
D. M. Jackson and R. C. Read, A note on permutations without runs of given length, Aequationes Math. 17 (1978), no. 2-3, 336-343.
FORMULA
G.f.: Sum_{k>=0} k! * ( (x-x^5)/(1-x^5) )^k.
a(n) = Sum_{k=0..4} A184182(n,k). - Alois P. Heinz, Feb 17 2024
PROG
(PARI) my(N=30, x='x+O('x^N)); Vec(sum(k=0, N, k!*((x-x^5)/(1-x^5))^k))
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Feb 17 2024
STATUS
approved