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.

A196491 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,3,0,1,4 for x=0,1,2,3,4.

Table of values

n a(n)
1 1
2 17
3 199
4 1821
5 18661
6 188603
7 1875863
8 18685389
9 187248247
10 1876363069
11 18755173019
12 187535974669
13 1876305125439
14 18771074346899
15 187768965127635
16 1878237376211187
17 18788431542792943
18 187947977420652363

List of values

[1, 17, 199, 1821, 18661, 188603, 1875863, 18685389, 187248247, 1876363069, 18755173019, 187535974669, 1876305125439, 18771074346899, 187768965127635, 1878237376211187, 18788431542792943, 187947977420652363]

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

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