A017069 a(n) = (8*n)^5.

0, 32768, 1048576, 7962624, 33554432, 102400000, 254803968, 550731776, 1073741824, 1934917632, 3276800000, 5277319168, 8153726976, 12166529024, 17623416832, 24883200000, 34359738368, 46525874176

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..10000

Index entries for linear recurrences with constant coefficients, signature (6, -15, 20, -15, 6, -1).

Formula

a(n) = 6*a(n-1) - 15*a(n-2) + 20*a(n-3) - 15*a(n-4) + 6*a(n-5) - a(n-6); a(0)=0, a(1)=32768, a(2)=1048576, a(3)=7962624, a(4)=33554432, a(5)=102400000. - Harvey P. Dale, Sep 10 2014

Mathematica

(8 Range[0, 30])^5 (* or *) LinearRecurrence[{6, -15, 20, -15, 6, -1}, {0, 32768, 1048576, 7962624, 33554432, 102400000}, 30] (* Harvey P. Dale, Sep 10 2014 *)

Prog

(Magma) [(8*n)^5: n in [0..35]]; // Vincenzo Librandi, Jul 11 2011

Crossrefs

Sequence in context: A223335 A194934 A016997 * A017261 A017369 A017489

Adjacent sequences: A017066 A017067 A017068 * A017070 A017071 A017072

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved