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.

A308398 Expansion of e.g.f. exp(Sum_{k>=1} x^(k^2)*(x^(k^2) - 1)/k^2).

Table of values

n a(n)
0 1
1 -1
2 3
3 -7
4 19
5 -51
6 61
7 167
8 6777
9 -107929
10 1650691
11 -17839911
12 157217083
13 -1229269627
14 6185945949
15 -3251776921
16 -1151787785999
17 10138302541647
18 532690324952707
19 -14122245788830279
20 443912721023736291
21 -7480012715591067331
22 115775303074594208893
23 -1392396864130912381017

List of values

[1, -1, 3, -7, 19, -51, 61, 167, 6777, -107929, 1650691, -17839911, 157217083, -1229269627, 6185945949, -3251776921, -1151787785999, 10138302541647, 532690324952707, -14122245788830279, 443912721023736291, -7480012715591067331, 115775303074594208893, -1392396864130912381017]