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.

A246001 Number of length 6+2 0..n arrays with no pair in any consecutive three terms totalling exactly n.

Table of values

n a(n)
1 2
2 56
3 2308
4 23168
5 171942
6 795144
7 3057032
8 9401216
9 25819210
10 62402840
11 139927692
12 288998016
13 566057198
14 1047126248
15 1862251792
16 3175741184
17 5253738642
18 8416795896
19 13163097620
20 20070807680
21 30009814582
22 43960191176

List of values

[2, 56, 2308, 23168, 171942, 795144, 3057032, 9401216, 25819210, 62402840, 139927692, 288998016, 566057198, 1047126248, 1862251792, 3175741184, 5253738642, 8416795896, 13163097620, 20070807680, 30009814582, 43960191176]