A016976 a(n) = (6*n + 5)^8.

390625, 214358881, 6975757441, 78310985281, 500246412961, 2251875390625, 7984925229121, 23811286661761, 62259690411361, 146830437604321, 318644812890625, 645753531245761, 1235736291547681, 2252292232139041, 3936588805702081, 6634204312890625, 10828567056280801

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• easy

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..1000
• Index entries for linear recurrences with constant coefficients, signature (9,-36,84,-126,126,-84,36,-9,1).

Crossrefs

Cf. A016969 (6*n + 5), A016970, A016971, A016972, A016973, A016974, A016975.

Subsequence of A001016 (n^8).

Programs

Magma

[(6*n+5)^8: n in [0..20]]; // Vincenzo Librandi, May 12 2011

Mathematica

Table[(6*n + 5)^8, {n, 0, 20}] (* Amiram Eldar, Apr 01 2022 *)

Formula

From Amiram Eldar, Apr 01 2022: (Start)

a(n) = A016969(n)^8 = A016970(n)^4 = A016972(n)^2.

Sum_{n>=0} 1/a(n) = PolyGamma(7, 5/6)/8465264640. (End)