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 A113440 First row of A113439. 1
 1, 2, 8, 34, 146, 627, 2689, 11521, 49337, 211233, 904306, 3871305, 16572812, 70947073, 303719624, 1300203634, 5566087073, 23828058969, 102006385362, 436682772844, 1869410868456, 8002827727921, 34259590954322 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS G. C. Greubel, Table of n, a(n) for n = 0..1000 Index entries for linear recurrences with constant coefficients, signature (9,-28,38,-20,1). FORMULA a(n) = A113439(4*n). a(n) = 9*a(n-1) - 28*a(n-2) + 38*a(n-3) - 20*a(n-4) + a(n-5). G.f.: -(1-7*x+18*x^2-20*x^3+8*x^4)/(-1+9*x-28*x^2+38*x^3-20*x^4+x^5). MATHEMATICA CoefficientList[Series[-(1 - 7*x + 18*x^2 - 20*x^3 + 8*x^4)/(-1 + 9*x - 28*x^2 + 38*x^3 - 20*x^4 + x^5), {x, 0, 50}], x] (* G. C. Greubel, Mar 11 2017 *) PROG (PARI) x='x+O('x^50); Vec(-(1-7*x+18*x^2-20*x^3+8*x^4)/(-1+9*x-28*x^2+38*x^3-20*x^4+x^5)) \\ G. C. Greubel, Mar 11 2017 CROSSREFS Cf. A113439. Sequence in context: A228655 A192402 A014445 * A296227 A034999 A067336 Adjacent sequences:  A113437 A113438 A113439 * A113441 A113442 A113443 KEYWORD nonn AUTHOR Floor van Lamoen, Nov 04 2005 STATUS approved

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Last modified January 19 00:40 EST 2020. Contains 331030 sequences. (Running on oeis4.)