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.

A321261 a(n) = [x^n] Product_{k>=1} (1 + x^k)^(sigma_n(k)-k^n).

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 17
5 2
6 859
7 131
8 105508
9 40907
10 72916903
11 6834168
12 228239366293
13 27616985835
14 2050004858009336
15 352807044193881
16 87173272463714343166
17 6798224808203572198
18 18318379579349549499397403
19 1187836799227050499295342
20 11258903016282277676462826232428

List of values

[1, 0, 1, 1, 17, 2, 859, 131, 105508, 40907, 72916903, 6834168, 228239366293, 27616985835, 2050004858009336, 352807044193881, 87173272463714343166, 6798224808203572198, 18318379579349549499397403, 1187836799227050499295342, 11258903016282277676462826232428]