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.

A232806 a(n) = a(n-1)^2/2 + 5/2, a(0) = 1.

Original entry on oeis.org

1, 3, 7, 27, 367, 67347, 2267809207, 2571479299676984427, 3306252894333617140505030630200259167
Offset: 0

Views

Author

Richard R. Forberg, Nov 30 2013

Keywords

Comments

First differences are 2*A063573.

Crossrefs

Cf. A063573, A002065, A166105.

Formula

a(n) = 2*A002065(n) + 1.
a(n) = 2*A166105(n) - 1. - Robert FERREOL, May 31 2020
a(n) = A002065(n) + A166105(n). - Alois P. Heinz, Jun 07 2020

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

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