cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-2 of 2 results.

A016848 a(n) = (4*n+3)^12.

Original entry on oeis.org

531441, 13841287201, 3138428376721, 129746337890625, 2213314919066161, 21914624432020321, 150094635296999121, 787662783788549761, 3379220508056640625, 12381557655576425121, 39959630797262576401
Offset: 0

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A017144 a(n) = (8*n + 6)^8.

Original entry on oeis.org

1679616, 1475789056, 54875873536, 656100000000, 4347792138496, 20047612231936, 72301961339136, 218340105584896, 576480100000000, 1370114370683136, 2992179271065856, 6095689385410816, 11716593810022656
Offset: 0

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Author

Keywords

Crossrefs

Cf. A016844.

Programs

  • Magma
    [(8*n+6)^8: n in [0..20]]; // Vincenzo Librandi, Jul 22 2011
  • Mathematica
    (8*Range[0,20]+6)^8 (* or *) LinearRecurrence[{9,-36,84,-126,126,-84,36,-9,1},{1679616,1475789056,54875873536,656100000000,4347792138496,20047612231936,72301961339136,218340105584896,576480100000000},20] (* Harvey P. Dale, Jul 23 2016 *)

Formula

a(n) = 256*A016844(n). - R. J. Mathar, Aug 26 2015
a(n) = 9*a(n-1) - 36*a(n-2) + 84*a(n-3) - 126*a(n-4) + 126*a(n-5) - 84*a(n-6) + 36*a(n-7) - 9*a(n-8) + a(n-9); a(0)=1679616, a(1)=1475789056, a(2)=54875873536, a(3)=656100000000, a(4)=4347792138496, a(5)=20047612231936, a(6)=72301961339136, a(7)=218340105584896, a(8)=576480100000000. - Harvey P. Dale, Jul 23 2016
Showing 1-2 of 2 results.