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.

A197278 Number of n X 6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,1,1 for x=0,1,2,3,4.

Table of values

n a(n)
1 16
2 134
3 888
4 11850
5 114205
6 1276986
7 13500114
8 135563958
9 1464662469
10 15975572837
11 167590942240
12 1768832921236
13 19029812782209
14 203511535493020
15 2157669619156227
16 22971322152723986
17 245668877166018309
18 2619846491701562613
19 27883612518177103171
20 297316240949616974969

List of values

[16, 134, 888, 11850, 114205, 1276986, 13500114, 135563958, 1464662469, 15975572837, 167590942240, 1768832921236, 19029812782209, 203511535493020, 2157669619156227, 22971322152723986, 245668877166018309, 2619846491701562613, 27883612518177103171, 297316240949616974969]

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

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