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.

A335157 Define b(n) by 1/sm(w) = Sum_{n >= 0} b(3*n-1)*w^(3*n-1), where sm(w) is the elliptic function defined in A104133; a(n) = numerator of b(3*n-1).

Table of values

n a(n)
0 1
1 1
2 -1
3 -1
4 11
5 1
6 -193
7 -5
8 3851
9 449
10 -16493
11 -17093
12 2776513483
13 2766847
14 -18326878991
15 -284903947
16 313476755027
17 15306883537
18 -5759963886461
19 -549822999679
20 43471527926977757
21 649802711643571
22 -53651420037921807347
23 -278016083032863199
24 164833044827776566977996843

List of values

[1, 1, -1, -1, 11, 1, -193, -5, 3851, 449, -16493, -17093, 2776513483, 2766847, -18326878991, -284903947, 313476755027, 15306883537, -5759963886461, -549822999679, 43471527926977757, 649802711643571, -53651420037921807347, -278016083032863199, 164833044827776566977996843]