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A157504 (det(I - M) - 1)/x where M_jk = (j*x)^k/k! 0
-1, -2, -7, -40, -301, -2856, -32299, -416816, -5892345, -86464000, -1177909711, -8944121088, 349846341467, 29237270702080, 1585383533246925, 78578098584541184, 3843296406581515919, 190784066705549623296 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

FORMULA

A(n) = A157503(n)/n, Egf: (det(I - M) - 1)/x where M_jk = (j*x)^k/k!

MATHEMATICA

A[n_] := A157503[n]/n

CROSSREFS

A157503

Sequence in context: A153744 A189826 A069732 * A093985 A162653 A166904

Adjacent sequences:  A157501 A157502 A157503 * A157505 A157506 A157507

KEYWORD

easy,sign

AUTHOR

Andrew Robbins (and_j_rob(AT)yahoo.com), Mar 02 2009

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Last modified February 14 10:24 EST 2012. Contains 205614 sequences.