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.

A199130 Number of nX5 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and no element equal to any horizontal or vertical neighbor.

Table of values

n a(n)
1 6
2 30
3 70
4 1409
5 11475
6 33970
7 887966
8 8181546
9 26354800
10 739462036
11 7166709232
12 23742940530
13 690068431668
14 6837489856538
15 23031293598718
16 682253330136338
17 6857414650447522
18 23326710623207736
19 700022706564351432

List of values

[6, 30, 70, 1409, 11475, 33970, 887966, 8181546, 26354800, 739462036, 7166709232, 23742940530, 690068431668, 6837489856538, 23031293598718, 682253330136338, 6857414650447522, 23326710623207736, 700022706564351432]