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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.

A200526 a(n) = gcd(t(n), t(3n-1)), where t = A200217.

Table of values

n a(n)
2 2156316023
3 211148507797805
4 392841376460687116573
5 13886731309220741899538675431
6 1359801885649216204023955447726829
7 2529908688645864568558938918274367865293
8 89430911052730984787593270943984417274689212615

List of values

[2156316023, 211148507797805, 392841376460687116573, 13886731309220741899538675431, 1359801885649216204023955447726829, 2529908688645864568558938918274367865293, 89430911052730984787593270943984417274689212615]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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