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.

A194775 Number of lower triangles of an (n+8) X (n+8) 0..5 array with new values introduced in row major order 0..5 and no element unequal to more than one horizontal or vertical neighbor.

Table of values

n a(n)
1 1740
2 4490
3 11857
4 31429
5 84727
6 229869
7 631373
8 1745459
9 4867831
10 13649561
11 38503606
12 109050858
13 310061698
14 883972100
15 2526165997
16 7230962925
17 20725462609
18 59454601239
19 170659921683
20 490024454069
21 1407237659011

List of values

[1740, 4490, 11857, 31429, 84727, 229869, 631373, 1745459, 4867831, 13649561, 38503606, 109050858, 310061698, 883972100, 2526165997, 7230962925, 20725462609, 59454601239, 170659921683, 490024454069, 1407237659011]