A017025 a(n) = (7*n + 3)^9.

19683, 1000000000, 118587876497, 2641807540224, 26439622160671, 165216101262848, 756680642578125, 2779905883635712, 8662995818654939, 23762680013799936, 58871586708267913, 134217728000000000, 285544154243029527, 572994802228616704, 1093685272684360901, 1999004627104432128

Offset

0,1

Links

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

Index entries for linear recurrences with constant coefficients, signature (10,-45,120,-210,252,-210,120,-45,10,-1).

Mathematica

(7*Range[0, 15] + 3)^9 (* Paolo Xausa, Dec 07 2025 *)

Prog

(Magma) [(7*n+3)^9: n in [0..20]]; // Vincenzo Librandi, Jul 14 2011

Crossrefs

Sequence in context: A016893 A016953 A074152 * A017109 A017205 A017313

Adjacent sequences: A017022 A017023 A017024 * A017026 A017027 A017028

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved