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A111551 Column 2 of A111549, which is the matrix log of A111544. 0
0, 3, 9, 47, 321, 2607, 24099, 247527, 2783331, 33924303, 445016619, 6249234807, 93541817331, 1487200667103, 25037315924859, 445123900236807, 8336458657796931, 164100631571947503, 3388128151043405259 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
PROG
(PARI) {a(n)=local(M=matrix(n+3, n+3, m, j, if(m==j, 1, if(m==j+1, -m+1, -(m-j-1)*polcoeff(log(sum(i=0, m, (i+2)!/2!*x^i)), m-j-1))))); if(n<0, 0, sum(i=1, #M, (M^0-M)^i/i)[n+3, 3])}
CROSSREFS
Sequence in context: A221986 A018445 A129432 * A258481 A102929 A105458
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Aug 07 2005
STATUS
approved

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Last modified March 28 11:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)