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A192661
Floor-Sqrt transform of central Stirling numbers of the second kind (A007820).
0
1, 1, 2, 9, 41, 206, 1150, 7023, 46279, 325845, 2432608, 19138508, 157893016, 1360356046, 12197663221, 113489506443, 1092914231524, 10869407462093, 111421588497433, 1175241503062627, 12735340966302227, 141585732942425447, 1612917155538690101
OFFSET
0,3
FORMULA
a(n) = floor(sqrt(stirling2(2*n,n))).
MATHEMATICA
Table[Floor[Sqrt[StirlingS2[2n, n]]], {n, 0, 100}]
PROG
(Maxima) makelist(floor(sqrt(stirling2(2*n, n))), n, 0, 24);
CROSSREFS
Sequence in context: A270766 A181375 A152052 * A020038 A330016 A056845
KEYWORD
nonn
AUTHOR
Emanuele Munarini, Jul 07 2011
STATUS
approved