OFFSET
0,3
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..41
MATHEMATICA
Table[Sum[StirlingS1[n, k]StirlingS1[n+1, k+1], {k, 0, n}], {n, 0, 100}]
PROG
(Maxima) makelist(sum(stirling1(n, k)*stirling1(n+1, k+1), k, 0, n), n, 0, 24);
CROSSREFS
KEYWORD
nonn
AUTHOR
Emanuele Munarini, Jul 04 2011
STATUS
approved