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.

A341505 E.g.f.: Product_{i>=1, j>=1} 1 / (1 - x^(i*j) / (i*j)!).

Table of values

n a(n)
0 1
1 1
2 4
3 14
4 77
5 427
6 3076
7 23088
8 205316
9 1936275
10 20611750
11 233576818
12 2909340750
13 38527889389
14 551372037898
15 8364582709282
16 135560933977809
17 2320127265064403
18 42072789623722518
19 802547153889643250
20 16118882845967168807
21 339268639052195731063

List of values

[1, 1, 4, 14, 77, 427, 3076, 23088, 205316, 1936275, 20611750, 233576818, 2909340750, 38527889389, 551372037898, 8364582709282, 135560933977809, 2320127265064403, 42072789623722518, 802547153889643250, 16118882845967168807, 339268639052195731063]