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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.

A288411 Primes of the form k!2+256, where k!2 is the double factorial number (A006852).

Table of values

n a(n)
1 257
2 271
3 1201
4 10651
5 135391
6 316234143481
7 49988475139107080748861383849035044804037186461213252284425520655249250725695020643146597883951938106998443603515881

List of values

[257, 271, 1201, 10651, 135391, 316234143481, 49988475139107080748861383849035044804037186461213252284425520655249250725695020643146597883951938106998443603515881]

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

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