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.

A322203 a(n) = coefficient of x^n*y^n/n in Sum_{n>=1} -log(1 - (x^n + y^n)), for n >= 1.

Table of values

n a(n)
1 1
2 5
3 13
4 45
5 131
6 497
7 1723
8 6525
9 24349
10 92655
11 352727
12 1353177
13 5200313
14 20061767
15 77559203
16 300553245
17 1166803127
18 4537617761
19 17672631919
20 68923449895
21 269128942459
22 1052050187347
23 4116715363823
24 16123804567209
25 63205303219531
26 247959276874717
27 973469712897103
28 3824345340503999
29 15033633249770549
30 59132290937828607
31 232714176627630575
32 916312071072401757

List of values

[1, 5, 13, 45, 131, 497, 1723, 6525, 24349, 92655, 352727, 1353177, 5200313, 20061767, 77559203, 300553245, 1166803127, 4537617761, 17672631919, 68923449895, 269128942459, 1052050187347, 4116715363823, 16123804567209, 63205303219531, 247959276874717, 973469712897103, 3824345340503999, 15033633249770549, 59132290937828607, 232714176627630575, 916312071072401757]