OFFSET
1,9
LINKS
Seiichi Manyama, Table of n, a(n) for n = 1..24
MATHEMATICA
a[n_]:= If[n<9, 1, (1 + Sum[a[n - j] * a[n -j - 1], {j, 6}])/a[ n - 8]]; Table[a[n], {n, 20}] (* Indranil Ghosh, Mar 18 2017 *)
PROG
(PARI) a(n) = if(n<9, 1, (1 + sum(j=1, 6, a(n - j) * a(n - j - 1)))/a(n - 8));
for(n=1, 24, print1(a(n), ", ")) \\ Indranil Ghosh, Mar 18 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Mar 17 2017
STATUS
approved