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.

A291221 p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - S^3 - S^6.

Table of values

n a(n)
0 0
1 0
2 1
3 0
4 3
5 2
6 6
7 12
8 13
9 42
10 42
11 117
12 156
13 312
14 531
15 894
16 1641
17 2757
18 4866
19 8643
20 14525
21 26637
22 44292
23 80738
24 136563
25 243747
26 420347
27 739188
28 1286250
29 2252976
30 3921546
31 6879438
32 11951510
33 20993796
34 36461328
35 64002901
36 111314775
37 195060591
38 339831254

List of values

[0, 0, 1, 0, 3, 2, 6, 12, 13, 42, 42, 117, 156, 312, 531, 894, 1641, 2757, 4866, 8643, 14525, 26637, 44292, 80738, 136563, 243747, 420347, 739188, 1286250, 2252976, 3921546, 6879438, 11951510, 20993796, 36461328, 64002901, 111314775, 195060591, 339831254]