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.

A194774 Number of lower triangles of an (n+6)X(n+6) 0..4 array with new values introduced in row major order 0..4 and no element unequal to more than one horizontal or vertical neighbor.

Table of values

n a(n)
1 268
2 672
3 1736
4 4464
5 11686
6 30608
7 80961
8 214469
9 570921
10 1521287
11 4061881
12 10847647
13 28982750
14 77406210
15 206655490
16 551301206
17 1469565060
18 3913609398
19 10412354243
20 27674510615
21 73480819187
22 194908131709
23 516485443463

List of values

[268, 672, 1736, 4464, 11686, 30608, 80961, 214469, 570921, 1521287, 4061881, 10847647, 28982750, 77406210, 206655490, 551301206, 1469565060, 3913609398, 10412354243, 27674510615, 73480819187, 194908131709, 516485443463]