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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.

A288405 Primes of the form k!2+4, where k!2 is the double factorial number (A006852).

Table of values

n a(n)
1 5
2 7
3 19
4 109
5 10399
6 34459429
7 6190283353629379
8 319830986772877770815629
9 563862029680583509947946879
10 174865344543353986303948473285124243127671456831640629
11 2987435000850314871976096554696085799164511452611632783323554397412109379

List of values

[5, 7, 19, 109, 10399, 34459429, 6190283353629379, 319830986772877770815629, 563862029680583509947946879, 174865344543353986303948473285124243127671456831640629, 2987435000850314871976096554696085799164511452611632783323554397412109379]

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

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