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 A016956 a(n) = (6*n + 3)^12. 1
 531441, 282429536481, 129746337890625, 7355827511386641, 150094635296999121, 1667889514952984961, 12381557655576425121, 68952523554931640625, 309629344375621415601, 1176246293903439668001, 3909188328478827879681, 11646329922777311412561, 31676352024078369140625 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..2000 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, Mar 31 2022: (Start) a(n) = A016945(n)^12 = A016946(n)^6 = A016947(n)^4 = A016948(n)^3 = A016950(n)^2.. a(n) = 3^12*A016764(n). Sum_{n>=0} 1/a(n) = 691*Pi^12/339414785740800. (End) MATHEMATICA (6*Range[0, 20]+3)^12 (* Harvey P. Dale, Jan 23 2013 *) PROG (Magma) [(6*n+3)^12: n in [0..20]]; // Vincenzo Librandi, May 06 2011 CROSSREFS Cf. A016764, A016945, A016946, A016947, A016948, A016949, A016950, A016951, A016952, A016953, A016954, A016955. Subsequence of A008456. Sequence in context: A016776 A016848 A016896 * A017028 A017112 A017208 Adjacent sequences: A016953 A016954 A016955 * A016957 A016958 A016959 KEYWORD nonn,easy AUTHOR N. J. A. Sloane STATUS approved

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Last modified July 21 00:40 EDT 2024. Contains 374462 sequences. (Running on oeis4.)