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.

A232319 Number of (3+1)X(n+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero.

Table of values

n a(n)
1 13
2 115
3 1202
4 14042
5 164014
6 1905436
7 22161823
8 257723189
9 2997153100
10 34854893113
11 405339144562
12 4713824245681
13 54818634195843
14 637504183234586
15 7413748797343868
16 86216957745461401
17 1002645760786026294

List of values

[13, 115, 1202, 14042, 164014, 1905436, 22161823, 257723189, 2997153100, 34854893113, 405339144562, 4713824245681, 54818634195843, 637504183234586, 7413748797343868, 86216957745461401, 1002645760786026294]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.