A017203 a(n) = (9*n + 3)^7.

2187, 35831808, 1801088541, 21870000000, 137231006679, 587068342272, 1954897493193, 5455160701056, 13348388671875, 29509034655744, 60170087060757, 114868566764928, 207616015289871, 358318080000000

Offset

0,1

Links

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

Index entries for linear recurrences with constant coefficients, signature (8, -28, 56, -70, 56, -28, 8, -1).

Prog

(Magma) [(9*n+3)^7: n in [0..20]]; // Vincenzo Librandi, Jul 23 2011

Crossrefs

Sequence in context: A017023 A017107 A018875 * A017311 A017431 A079231

Adjacent sequences: A017200 A017201 A017202 * A017204 A017205 A017206

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved