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.

A305201 Expansion of e.g.f. Product_{k>=1} 1/(1 - H(k)*x^k), where H(k) is the k-th harmonic number.

Table of values

n a(n)
0 1
1 1
2 5
3 26
4 208
5 1644
6 18728
7 201466
8 2809672
9 39505800
10 647509992
11 10851033984
12 210456343392
13 4090234000800
14 89123794754304
15 2000019423403824
16 48674645933985408
17 1217362548455301504
18 32913123947574009984
19 910006995701419453440
20 26898048642355515339264

List of values

[1, 1, 5, 26, 208, 1644, 18728, 201466, 2809672, 39505800, 647509992, 10851033984, 210456343392, 4090234000800, 89123794754304, 2000019423403824, 48674645933985408, 1217362548455301504, 32913123947574009984, 910006995701419453440, 26898048642355515339264]