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 A259709 a(n) = A259708(n,n-1). 2
 0, -1, 0, 4, 22, 78, 240, 679, 1828, 4762, 12132, 30432, 75504, 185875, 455040, 1109540, 2697698, 6545670, 15859128, 38384099, 92832716, 224399570, 542226888, 1309862496, 3163659744, 7640066759, 18448657344, 44545569508, 107553559150, 259675788510 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 LINKS Eric M. Schmidt, Table of n, a(n) for n = 1..300 L. Carlitz, Some polynomials related to Fibonacci and Eulerian numbers, Fib. Quart., 16 (1978), 217. (Annotated scanned copy) L. Carlitz, Some polynomials related to Fibonacci and Eulerian numbers, Fib. Quart., 16 (1978), 216-226. FORMULA Empirical: a(n) = 4*a(n-1) - 2*a(n-2) - 6*a(n-3) + 2*a(n-4) + 4*a(n-5) + a(n-6). - Eric M. Schmidt, Jul 10 2015 Empirical: G.f.: -x^2*(-1+2*x^2+4*x) / ( (x^2+2*x-1)*(x^2+x-1)^2 ). - R. J. Mathar, Jul 15 2015 CROSSREFS Cf. A259708. Sequence in context: A052149 A062966 A201127 * A078155 A237530 A096167 Adjacent sequences:  A259706 A259707 A259708 * A259710 A259711 A259712 KEYWORD sign AUTHOR N. J. A. Sloane, Jul 05 2015 EXTENSIONS More terms from Eric M. Schmidt, Jul 10 2015 STATUS approved

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Last modified August 6 10:01 EDT 2020. Contains 336245 sequences. (Running on oeis4.)