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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.

A319112 Expansion of e.g.f. Product_{k>=1} 1/(1 - x^prime(k)/prime(k)).

Table of values

n a(n)
0 1
1 0
2 1
3 2
4 6
5 44
6 170
7 1644
8 7448
9 72624
10 653112
11 8510160
12 62704752
13 1324662624
14 10772812752
15 167386388064
16 2413326453120
17 52610523489024
18 597065112874368
19 18066985168806144
20 212119023906342144
21 4734822914239173120
22 100734270778298352384
23 2818116390408742291968
24 48201015565806837709824

List of values

[1, 0, 1, 2, 6, 44, 170, 1644, 7448, 72624, 653112, 8510160, 62704752, 1324662624, 10772812752, 167386388064, 2413326453120, 52610523489024, 597065112874368, 18066985168806144, 212119023906342144, 4734822914239173120, 100734270778298352384, 2818116390408742291968, 48201015565806837709824]

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

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