A102317 - OEIS

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A102317

Row sums of triangle A102316.

1, 2, 7, 40, 333, 3706, 52128, 891700, 18038217, 422455778, 11265993155, 337573337108, 11241696796572, 412291622024088, 16524941775629068, 719072894898300540, 33777207106037303457, 1704222469853179505170, 91954474204022335742037, 5285317768791730330402208

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..19.

PROG

(PARI) {a(n)=local(M=matrix(n+1, n+1)); for(m=0, n, for(k=0, m, M[m+1, k+1]=if(m==0||k==0, 1, M[m+1, k]+(k+1)*M[m, k+1]))); return(sum(i=0, n, M[n+1, i+1]))}

CROSSREFS

Cf. A102316.

Sequence in context: A367255 A135082 A372348 * A361828 A031973 A274279

Adjacent sequences: A102314 A102315 A102316 * A102318 A102319 A102320

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Jan 04 2005

EXTENSIONS

More terms from Robert C. Lyons, Jul 19 2024

STATUS

approved