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 A017659 a(n) = (12n+11)^7. 1
 19487171, 3404825447, 64339296875, 506623120463, 2488651484819, 9095120158391, 27136050989627, 69833729609375, 160578147647843, 337931541778439, 662062621900811, 1222791080775407, 2149422977421875 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..1000 Index entries for linear recurrences with constant coefficients, signature (8,-28,56,-70,56,-28,8,-1). FORMULA a(n) = 8*a(n-1)-28*a(n-2)+56*a(n-3)- 70*a(n-4)+ 56*a(n-5)- 28*a(n-6)+ 8*a(n-7)-a(n-8). - Harvey P. Dale, May 16 2012 a(n) = A001015(A017653(n)). - Michel Marcus, Oct 29 2022 MATHEMATICA (12Range[0, 20]+11)^7 (* Harvey P. Dale, May 16 2012 *) LinearRecurrence[{8, -28, 56, -70, 56, -28, 8, -1}, {19487171, 3404825447, 64339296875, 506623120463, 2488651484819, 9095120158391, 27136050989627, 69833729609375}, 20] (* Harvey P. Dale, May 16 2012 *) PROG (Magma) [(12*n+11)^7: n in [0..15]]; // Vincenzo Librandi, May 21 2012 CROSSREFS Cf. A001015, A017653. Sequence in context: A038683 A017287 A017395 * A348267 A172767 A122557 Adjacent sequences: A017656 A017657 A017658 * A017660 A017661 A017662 KEYWORD nonn,easy AUTHOR N. J. A. Sloane. STATUS approved

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Last modified April 21 00:22 EDT 2024. Contains 371850 sequences. (Running on oeis4.)