A343584 - OEIS

A343584

a(n) = Sum_{j=0..n}(-1)^(n-j)*binomial(n, j)*A028246(n+1, j+1).

1, 0, -3, -10, 25, 574, 2653, -30234, -644079, -2438722, 102934381, 2094370486, 680814121, -762930678498, -14273311787139, 102712339811654, 10395244787594401, 165359347094406526, -3771699711640161587, -231946002714537442026, -2649765469158480160839

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OFFSET

0,3

LINKS

Table of n, a(n) for n=0..20.

MAPLE

T := (n, k) -> add(combinat:-eulerian1(n, j)*binomial(n-j, n-k), j=0..n):

a := n -> add((-1)^(n-j)*T(n, j)*binomial(n, j), j=0..n): seq(a(n), n=0..22);

PROG

(PARI) T(n, j) = stirling(n, k, 2)*(k-1)!; \\ A028246

a(n) = sum(j=0, n, (-1)^(n-j)*binomial(n, j)*T(n+1, j+1)); \\ Michel Marcus, May 04 2021

CROSSREFS

Cf. A028246, A173018.

Sequence in context: A227937 A299754 A190529 * A335970 A212967 A355902

Adjacent sequences: A343581 A343582 A343583 * A343585 A343586 A343587

KEYWORD

sign

AUTHOR

Peter Luschny, Apr 28 2021

STATUS

approved