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.

A290405 Expansion of (a(q) / b(q))^3 in powers of q where a(), b() are cubic AGM theta functions.

Table of values

n a(n)
0 1
1 27
2 324
3 2430
4 13716
5 64557
6 265356
7 983556
8 3353076
9 10670373
10 32031288
11 91455804
12 249948828
13 657261999
14 1669898592
15 4113612864
16 9853898292
17 23010586596
18 52494114852
19 117209543940
20 256559365656
21 551320914321
22 1164556135440
23 2420715030912
24 4956677613180

List of values

[1, 27, 324, 2430, 13716, 64557, 265356, 983556, 3353076, 10670373, 32031288, 91455804, 249948828, 657261999, 1669898592, 4113612864, 9853898292, 23010586596, 52494114852, 117209543940, 256559365656, 551320914321, 1164556135440, 2420715030912, 4956677613180]