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A192548 a(n) = sum(abs(stirling1(n,k))*stirling2(n+1,k+1),k=0..n). 1
1, 1, 4, 33, 426, 7670, 181000, 5376777, 195238792, 8472419484, 431606519268, 25440239275308, 1714357181128372, 130748750027622922, 11188498960336877296, 1066226987215138587095, 112415085220156146401380, 13037223283297354475403696 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
MATHEMATICA
Table[Sum[Abs[StirlingS1[n, k]]StirlingS2[n+1, k+1], {k, 0, n}], {n, 0, 100}]
PROG
(Maxima) makelist(sum(abs(stirling1(n, k))*stirling2(n+1, k+1), k, 0, n), n, 0, 24);
CROSSREFS
Cf. A047793.
Sequence in context: A216135 A052885 A277184 * A119821 A102321 A268293
KEYWORD
nonn
AUTHOR
Emanuele Munarini, Jul 04 2011
STATUS
approved

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Last modified April 17 04:22 EDT 2024. Contains 371756 sequences. (Running on oeis4.)