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URL: https://oeis.org/A108268

⇱ A108268 - OEIS

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A108268
Column 2 of triangle A108267.
0
1, 31, 381, 3431, 26769, 193705, 1343521, 9091270, 60632419, 401001030, 2639871326, 17339260251, 113792427233, 746807661549, 4903854042841, 32227106641988, 211992209767971, 1395903036647155, 9200826759772935
OFFSET
2,2
PROG
(PARI)
a(n)=polcoeff((1-x)^(n+1)*sum(j=0, n, binomial(n+n*j+j, n*j+j)*x^j), 2)
CROSSREFS
Cf. A108267.
Sequence in context: A042868 A258944 A047689 * A214886 A091348 A328750
KEYWORD
nonn
AUTHOR
Paul D. Hanna, May 29 2005
EXTENSIONS
Offset corrected by Andrey Zabolotskiy, Nov 23 2021
STATUS
approved