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.

A130643 Numbers n such that 1 - Sum{k=1..n/2} A001223(2k-1)*(-1)^k = 0.

Table of values

n a(n)
1 4
2 8
3 12
4 22
5 38
6 302
7 308
8 464
9 472
10 476
11 1186
12 1884
13 2006
14 2026
15 2106
16 23636
17 23656
18 23698
19 25984
20 25990
21 26706
22 26924
23 27000
24 311914
25 311938
26 313866
27 313880
28 331676
29 332002
30 332676
31 377102
32 377634
33 377670
34 379026
35 379090
36 379108
37 387618
38 389076

List of values

[4, 8, 12, 22, 38, 302, 308, 464, 472, 476, 1186, 1884, 2006, 2026, 2106, 23636, 23656, 23698, 25984, 25990, 26706, 26924, 27000, 311914, 311938, 313866, 313880, 331676, 332002, 332676, 377102, 377634, 377670, 379026, 379090, 379108, 387618, 389076]