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.

A382948 a(n) = [(x*y)^n] Product_{k>=1} (1 + x^k + y^k)^k.

Table of values

n a(n)
0 1
1 0
2 2
3 18
4 50
5 190
6 536
7 1644
8 4432
9 12876
10 33560
11 89118
12 227734
13 572578
14 1409602
15 3424996
16 8150818
17 19152532
18 44455758
19 101565172
20 229712612
21 513207144
22 1134650028
23 2481664146
24 5379539720
25 11545719858
26 24574548632
27 51855844492
28 108559596182

List of values

[1, 0, 2, 18, 50, 190, 536, 1644, 4432, 12876, 33560, 89118, 227734, 572578, 1409602, 3424996, 8150818, 19152532, 44455758, 101565172, 229712612, 513207144, 1134650028, 2481664146, 5379539720, 11545719858, 24574548632, 51855844492, 108559596182]