cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A138031 a(n) = prime(n)^13.

Original entry on oeis.org

8192, 1594323, 1220703125, 96889010407, 34522712143931, 302875106592253, 9904578032905937, 42052983462257059, 504036361936467383, 10260628712958602189, 24417546297445042591, 243569224216081305397, 925103102315013629321, 1718264124282290785243
Offset: 1

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Keywords

Crossrefs

Subsequence of A010801 (13th powers).
Cf. A000040 (primes), A013671 (zeta(13)).

Programs

Formula

From Amiram Eldar, Jan 24 2021: (Start)
Product_{n>=1} (1 + 1/a(n)) = zeta(13)/zeta(26).
Product_{n>=1} (1 - 1/a(n)) = 1/zeta(13) = 1/A013671. (End)

Extensions

More terms from Vincenzo Librandi, Mar 27 2014