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.

A001939 Expansion of (psi(-x) / phi(-x))^5 in powers of x where phi(), psi() are Ramanujan theta functions.

Table of values

n a(n)
0 1
1 5
2 20
3 65
4 185
5 481
6 1165
7 2665
8 5820
9 12220
10 24802
11 48880
12 93865
13 176125
14 323685
15 583798
16 1035060
17 1806600
18 3108085
19 5276305
20 8846884
21 14663645
22 24044285
23 39029560
24 62755345
25 100004806
26 158022900
27 247710570
28 385366265
29 595212280
30 913040649
31 1391449780

List of values

[1, 5, 20, 65, 185, 481, 1165, 2665, 5820, 12220, 24802, 48880, 93865, 176125, 323685, 583798, 1035060, 1806600, 3108085, 5276305, 8846884, 14663645, 24044285, 39029560, 62755345, 100004806, 158022900, 247710570, 385366265, 595212280, 913040649, 1391449780]