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 A323847 a(n) = (n-1)*(n-2)*(n^2+9*n+12)/24. 1
 1, 0, 0, 4, 16, 41, 85, 155, 259, 406, 606, 870, 1210, 1639, 2171, 2821, 3605, 4540, 5644, 6936, 8436, 10165, 12145, 14399, 16951, 19826, 23050, 26650, 30654, 35091, 39991, 45385, 51305, 57784, 64856, 72556, 80920, 89985, 99789, 110371, 121771, 134030, 147190 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 COMMENTS Row 2 of array in A323846. LINKS Index entries for linear recurrences with constant coefficients, signature (5,-10,10,-5,1). FORMULA G.f.: (x^4-6*x^3+10*x^2-5*x+1)/(1-x)^5. - Alois P. Heinz and Don Knuth, Feb 06 2019 CROSSREFS Cf. A323846. Sequence in context: A206918 A056373 A018828 * A114211 A188124 A190090 Adjacent sequences:  A323842 A323843 A323846 * A323848 A323849 A323850 KEYWORD nonn,easy AUTHOR N. J. A. Sloane, Feb 06 2019 EXTENSIONS More terms from Alois P. Heinz, Feb 06 2019 Edited with new offset by N. J. A. Sloane, Feb 07 2019 following a suggestion from Don Knuth. STATUS approved

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Last modified April 20 08:29 EDT 2019. Contains 322306 sequences. (Running on oeis4.)