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.

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A133260 Unknown.

Original entry on oeis.org

20, 22, 30, 44, 66, 94
Offset: 1

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Author

kidon (kidonoscar(AT)hotmail.com), Oct 15 2007

Keywords

Comments

Possible solution: a(1) = 20 and a(n) = a(n-1) + 2 * A078309(n-1) for n >=2 , giving 20, 22, 30, 44, 66, 94, 128, 170, 218, 272, 334, 402, 476, 558, 646, 740, 842, ... . - Michal Paulovic, Nov 05 2023

Crossrefs

Cf. A078309.
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