A016796 a(n) = (3*n + 2)^8.

256, 390625, 16777216, 214358881, 1475789056, 6975757441, 25600000000, 78310985281, 208827064576, 500246412961, 1099511627776, 2251875390625, 4347792138496, 7984925229121, 14048223625216, 23811286661761, 39062500000000, 62259690411361, 96717311574016, 146830437604321

Offset

0,1

Links

Table of n, a(n) for n=0..19.

Index entries for linear recurrences with constant coefficients, signature (9,-36,84,-126,126,-84,36,-9,1).

Formula

From Amiram Eldar, Mar 31 2022: (Start)

a(n) = A016789(n)^6 = A016790(n)^3 = A016791(n)^2.

Sum_{n>=0} 1/a(n) = PolyGamma(7, 2/3)/33067440. (End)

Mathematica

(3 Range[0, 20] + 2)^8 (* Harvey P. Dale, Jan 24 2011 *)

Crossrefs

Cf. A016789, A016790, A016791, A016792, A016793, A016794, A016795.

Subsequence of A001016.

Sequence in context: A013833 A100636 A369824 * A018877 A283803 A330483

Adjacent sequences: A016793 A016794 A016795 * A016797 A016798 A016799

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved