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.

A030436 Expansion of g.f. (1 + x - 2*x^2 - x^3)/(1 - 4*x^2 + 2*x^4).

Table of values

n a(n)
0 1
1 1
2 2
3 3
4 6
5 10
6 20
7 34
8 68
9 116
10 232
11 396
12 792
13 1352
14 2704
15 4616
16 9232
17 15760
18 31520
19 53808
20 107616
21 183712
22 367424
23 627232
24 1254464
25 2141504
26 4283008
27 7311552
28 14623104
29 24963200
30 49926400
31 85229696
32 170459392
33 290992384
34 581984768
35 993510144
36 1987020288
37 3392055808

List of values

[1, 1, 2, 3, 6, 10, 20, 34, 68, 116, 232, 396, 792, 1352, 2704, 4616, 9232, 15760, 31520, 53808, 107616, 183712, 367424, 627232, 1254464, 2141504, 4283008, 7311552, 14623104, 24963200, 49926400, 85229696, 170459392, 290992384, 581984768, 993510144, 1987020288, 3392055808]