# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a113442 Showing 1-1 of 1 %I A113442 #9 Jul 08 2024 21:33:25 %S A113442 1,4,17,72,306,1305,5577,23858,102108,437080,1871065,8009866,34289712, %T A113442 146792138,628407994,2690174883,11516466985,49301256865,211055514017, %U A113442 903515089697,3867890010850,16558188448465,70884540117396 %N A113442 Third row of A113439. %H A113442 G. C. Greubel, Table of n, a(n) for n = 0..1000 %H A113442 Index entries for linear recurrences with constant coefficients, signature (9,-28,38,-20,1). %F A113442 a(n) = A113439(4*n+2). %F A113442 a(n) = 9*a(n-1) - 28*a(n-2) + 38*a(n-3) - 20*a(n-4) + a(n-5). %F A113442 G.f.: -(1-5*x+9*x^2-7*x^3+2*x^4)/(-1+9*x-28*x^2+38*x^3-20*x^4+x^5). %t A113442 CoefficientList[Series[-(1 - 5*x + 9*x^2 - 7*x^3 + 2*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 *) %o A113442 (PARI) x='x+O('x^50); Vec(-(1-5*x+9*x^2-7*x^3+2*x^4)/(-1+9*x-28*x^2+38*x^3-20*x^4+x^5)) \\ _G. C. Greubel_, Mar 11 2017 %Y A113442 Cf. A113439. %K A113442 nonn,easy %O A113442 0,2 %A A113442 _Floor van Lamoen_, Nov 04 2005 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE