OFFSET
0,5
MATHEMATICA
Table[Sum[(-1)^(n-k)Floor[Sqrt[BellB[k]]], {k, 0, n}], {n, 0, 100}]
PROG
(Maxima) makelist(sum((-1)^(n-k)*floor(sqrt(belln(k))), k, 0, n), n, 0, 28);
CROSSREFS
KEYWORD
nonn
AUTHOR
Emanuele Munarini, Jul 04 2011
STATUS
approved