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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.

A127392 Expansion of the elliptic function sqrt(k(q))/q^(1/4) in powers of q, where sqrt(k(q)) = theta_2(q)/theta_3(q).

Table of values

n a(n)
0 2
1 -4
2 10
3 -20
4 36
5 -64
6 110
7 -180
8 288
9 -452
10 692
11 -1044
12 1554
13 -2276
14 3296
15 -4724
16 6696
17 -9408
18 13108
19 -18112
20 24850
21 -33864
22 45844
23 -61696
24 82564
25 -109892
26 145536
27 -191828
28 251684
29 -328804
30 427802
31 -554408
32 715808
33 -920896
34 1180660
35 -1508736
36 1921896
37 -2440740
38 3090612

List of values

[2, -4, 10, -20, 36, -64, 110, -180, 288, -452, 692, -1044, 1554, -2276, 3296, -4724, 6696, -9408, 13108, -18112, 24850, -33864, 45844, -61696, 82564, -109892, 145536, -191828, 251684, -328804, 427802, -554408, 715808, -920896, 1180660, -1508736, 1921896, -2440740, 3090612]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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