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 A089081 26th powers: a(n) = n^26. 7
 0, 1, 67108864, 2541865828329, 4503599627370496, 1490116119384765625, 170581728179578208256, 9387480337647754305649, 302231454903657293676544, 6461081889226673298932241, 100000000000000000000000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..1000 Index to divisibility sequences FORMULA a(n) = n^26. Completely multiplicative sequence with a(p) = p^26 for prime p. Multiplicative sequence with a(p^e) = p^(26e). - Jaroslav Krizek, Nov 01 2009 From Amiram Eldar, Oct 09 2020: (Start) Dirichlet g.f.: zeta(s-26). Sum_{n>=1} 1/a(n) = zeta(26) = 1315862*Pi^26/11094481976030578125. Sum_{n>=1} (-1)^(n+1)/a(n) = 33554431*zeta(26)/33554432 = 22076500342261*Pi^26/186134520519971831808000000. (End) MATHEMATICA Range[0, 9]^26 (* Alonso del Arte, Apr 26 2015 *) PROG (Magma) [n^26: n in [0..15]]; // Vincenzo Librandi, Jun 19 2011 (PARI) a(n)=n^26 \\ Charles R Greathouse IV, Jun 28 2015 CROSSREFS Cf. A008454-A008456, A010801-A010813. Sequence in context: A138085 A263392 A011576 * A161774 A203670 A353203 Adjacent sequences: A089078 A089079 A089080 * A089082 A089083 A089084 KEYWORD nonn,mult,easy AUTHOR Douglas Winston (douglas.winston(AT)srupc.com), Dec 04 2003 STATUS approved

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Last modified November 29 10:13 EST 2023. Contains 367429 sequences. (Running on oeis4.)