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 A016955 a(n) = (6*n + 3)^11. 2
 177147, 31381059609, 8649755859375, 350277500542221, 5559060566555523, 50542106513726817, 317475837322472439, 1532278301220703125, 6071163615208263051, 20635899893042801193, 62050608388552823487, 168787390185178426269, 422351360321044921875, 984770902183611232881 (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 (12,-66,220,-495,792,-924,792,-495,220,-66,12,-1). FORMULA From Amiram Eldar, Mar 30 2022: (Start) a(n) = A016945(n)^11. a(n) = 3^11*A016763(n). Sum_{n>=0} 1/a(n) = 2047*zeta(11)/362797056. Sum_{n>=0} (-1)^n/a(n) = 50521*Pi^11/2633035913625600. (End) MATHEMATICA a[n_] := (6*n + 3)^11; Array[a, 50, 0] (* Amiram Eldar, Mar 30 2022 *) PROG (Magma) [(6*n+3)^11: n in [0..20]]; // Vincenzo Librandi, May 06 2011 CROSSREFS Cf. A016763, A016945, A016946, A016947, A016948, A016949, A016950, A016951, A016952, A016953, A016954. Subsequence of A008455. Sequence in context: A016775 A016847 A016895 * A017027 A017111 A017207 Adjacent sequences: A016952 A016953 A016954 * A016956 A016957 A016958 KEYWORD nonn,easy AUTHOR N. J. A. Sloane STATUS approved

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Last modified June 22 12:33 EDT 2024. Contains 373571 sequences. (Running on oeis4.)