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 A053133 One half of binomial coefficients binomial(2*n-8,9). 3
 5, 110, 1001, 5720, 24310, 83980, 248710, 653752, 1562275, 3453450, 7153575, 14024400, 26225628, 47071640, 81505820, 136719440, 222945905, 354465254, 550858165, 838553320, 1252716850, 1839537700, 2658968130, 3787984200 (list; graph; refs; listen; history; text; internal format)
 OFFSET 9,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 9..200 Index entries for linear recurrences with constant coefficients, signature (10,-45,120,-210,252,-210,120,-45, 10,-1). FORMULA a(n) = binomial(2*n-8, 9)/2. G.f.: (5+60*x+126*x^2+60*x^3+5*x^4)/(1-x)^10. a(n) = A053131(n)/2. MATHEMATICA Table[Binomial[2*n-8, 9]/2, {n, 9, 50}] (* G. C. Greubel, Aug 26 2018 *) PROG (PARI) a(n)=binomial(2*n-8, 9)/2 \\ Charles R Greathouse IV, Oct 03 2011 (MAGMA) [Binomial(2*n-8, 9)/2: n in [9..40]]; // Vincenzo Librandi, Oct 07 2011 CROSSREFS Cf. A053131. Sequence in context: A281762 A265082 A215786 * A203367 A322631 A294965 Adjacent sequences:  A053130 A053131 A053132 * A053134 A053135 A053136 KEYWORD nonn,easy AUTHOR STATUS approved

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Last modified April 23 12:15 EDT 2021. Contains 343204 sequences. (Running on oeis4.)