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.

A361726 Diagonal of rational function 1/(1 - (1 + x*y) * (x^2 + y^2)).

Table of values

n a(n)
0 1
1 0
2 2
3 4
4 8
5 24
6 56
7 144
8 376
9 960
10 2512
11 6560
12 17184
13 45248
14 119296
15 315392
16 835552
17 2217216
18 5893568
19 15687552
20 41810944
21 111567104
22 298016512
23 796832256
24 2132456704
25 5711486976
26 15309014528
27 41062927360
28 110213725184
29 295995574272
30 795391639552

List of values

[1, 0, 2, 4, 8, 24, 56, 144, 376, 960, 2512, 6560, 17184, 45248, 119296, 315392, 835552, 2217216, 5893568, 15687552, 41810944, 111567104, 298016512, 796832256, 2132456704, 5711486976, 15309014528, 41062927360, 110213725184, 295995574272, 795391639552]