|
|
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
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|