A024432 a(n) = t(1) - t(2) + t(3) + ... + c*t(n), where c = (-1)^(n+1) and t(j) are Stirling numbers S(n,k) in decreasing order, for k = 1,2,...,n.

1, 0, 3, 1, 20, 41, 147, 1450, 1441, 27513, 165814, 166011, 6759857, 38623792, 54257895, 2366944123, 16391013794, 27871290287, 1112444405811, 11151033695300, 24805899491473

Offset

1,3

Links

Table of n, a(n) for n=1..21.

Crossrefs

Sequence in context: A139723 A030042 A045496 * A334910 A016531 A221365

Adjacent sequences: A024429 A024430 A024431 * A024433 A024434 A024435

Keyword

nonn

Author

Clark Kimberling

Status

approved