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 A343840 a(n) = Sum_{k=0..n}(-1)^(n-k)*binomial(n, k)*|A021009(n, k)|. 0
 1, 0, -5, 22, 9, -1244, 14335, -79470, -586943, 25131304, -434574909, 4418399470, 8524321465, -1771817986548, 53502570125719, -1052208254769014, 11804172888840705, 131741085049224400, -12970386000411511733, 482732550618027365574, -12599999790172579025879 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Related to the coefficient triangle of generalized Laguerre polynomials A021009. LINKS MAPLE T := proc(n, k) local S; S := proc(n, k) option remember; `if`(k = 0, 1, `if`(k > n, 0, S(n-1, k-1)/k + S(n-1, k))) end: n!*S(n, k) end: a := n -> add((-1)^(n-j)*T(n, j)*binomial(n, j), j=0..n): seq(a(n), n=0..20); PROG (PARI) rowT(n) = Vecrev(n!*pollaguerre(n)); \\ A021009 a(n) = my(v=rowT(n)); sum(k=0, n, (-1)^(n-k)*binomial(n, k)*abs(v[k+1])); \\ Michel Marcus, May 04 2021 CROSSREFS Cf. A021009, A216831. Sequence in context: A156860 A225846 A247937 * A270406 A209049 A217444 Adjacent sequences:  A343837 A343838 A343839 * A343841 A343842 A343843 KEYWORD sign AUTHOR Peter Luschny, May 04 2021 STATUS approved

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Last modified September 27 19:34 EDT 2021. Contains 347694 sequences. (Running on oeis4.)