A016968 - OEIS

A016968

a(n) = (6*n + 4)^12.

16777216, 1000000000000, 281474976710656, 12855002631049216, 232218265089212416, 2386420683693101056, 16777216000000000000, 89762301673555234816, 390877006486250192896, 1449225352009601191936, 4722366482869645213696, 13841287201000000000000, 37133262473195501387776

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OFFSET

0,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Index entries for linear recurrences with constant coefficients, signature (13,-78,286,-715,1287,-1716,1716,-1287,715,-286,78,-13,1).

FORMULA

From Amiram Eldar, Apr 01 2022: (Start)

a(n) = A016957(n)^12 = A016958(n)^6 = A016959(n)^4 = A016960(n)^3 = A016962(n)^2.

a(n) = 2^12*A016800(n).

Sum_{n>=0} 1/a(n) = PolyGamma(11, 2/3)/86890185149644800. (End)

MATHEMATICA