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.

A237988 a(n) = 3*a(n-3) + 3*a(n-6) + a(n-9) for n>8, a(0)=0, a(1)=a(2)=1, a(3)=a(4)=2, a(5)=3, a(6)=7, a(7)=9, a(8)=11.

Table of values

n a(n)
0 0
1 1
2 1
3 2
4 2
5 3
6 7
7 9
8 11
9 27
10 34
11 43
12 104
13 131
14 165
15 400
16 504
17 635
18 1539
19 1939
20 2443
21 5921
22 7460
23 9399
24 22780
25 28701
26 36161
27 87642
28 110422
29 139123
30 337187
31 424829
32 535251
33 1297267
34 1634454
35 2059283
36 4991004
37 6288271
38 7922725
39 19202000
40 24193004
41 30481275
42 73876279
43 93078279
44 117271283

List of values

[0, 1, 1, 2, 2, 3, 7, 9, 11, 27, 34, 43, 104, 131, 165, 400, 504, 635, 1539, 1939, 2443, 5921, 7460, 9399, 22780, 28701, 36161, 87642, 110422, 139123, 337187, 424829, 535251, 1297267, 1634454, 2059283, 4991004, 6288271, 7922725, 19202000, 24193004, 30481275, 73876279, 93078279, 117271283]