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.

A132658 a(6n+k) = 3a(6n+k-1)-3a(6n+k-2)+2a(6n+k-3), k = 0, 1, 3, 4, 5; a(6n+2) = 3a(6n+1)-3a(6n). a(0) = a(1) = 0, a(2) = 1.

Table of values

n a(n)
0 0
1 0
2 1
3 3
4 6
5 11
6 21
7 42
8 63
9 105
10 210
11 441
12 903
13 1806
14 2709
15 4515
16 9030
17 18963
18 38829
19 77658
20 116487
21 194145
22 388290
23 815409
24 1669647
25 3339294
26 5008941
27 8348235
28 16696470
29 35062587
30 71794821
31 143589642
32 215384463
33 358974105
34 717948210

List of values

[0, 0, 1, 3, 6, 11, 21, 42, 63, 105, 210, 441, 903, 1806, 2709, 4515, 9030, 18963, 38829, 77658, 116487, 194145, 388290, 815409, 1669647, 3339294, 5008941, 8348235, 16696470, 35062587, 71794821, 143589642, 215384463, 358974105, 717948210]