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.

A320569 a(n) = [x^n] exp(Sum_{k>=1} sigma_n(k)*x^k/(k*(1 - x)^k)).

Table of values

n a(n)
0 1
1 1
2 4
3 25
4 272
5 5028
6 173754
7 11639691
8 1488266409
9 375932630887
10 190981026883402
11 191456188687238845
12 388595050299100664773
13 1602566853459119962711220
14 13153292027392201138778117308
15 220500920265786114712328027650814
16 7523329040995438987558888118224263531

List of values

[1, 1, 4, 25, 272, 5028, 173754, 11639691, 1488266409, 375932630887, 190981026883402, 191456188687238845, 388595050299100664773, 1602566853459119962711220, 13153292027392201138778117308, 220500920265786114712328027650814, 7523329040995438987558888118224263531]