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.

A200195 Number of -n..n arrays x(0..5) of 6 elements with zero sum, adjacent elements differing by more than one, and elements alternately increasing and decreasing.

Table of values

n a(n)
1 2
2 54
3 482
4 2240
5 7266
6 18838
7 41938
8 83600
9 153278
10 263198
11 428718
12 668684
13 1005790
14 1466934
15 2083578
16 2892104
17 3934174
18 5257082
19 6914122
20 8964936
21 11475878
22 14520370
23 18179258
24 22541172
25 27702886
26 33769670
27 40855654
28 49084180

List of values

[2, 54, 482, 2240, 7266, 18838, 41938, 83600, 153278, 263198, 428718, 668684, 1005790, 1466934, 2083578, 2892104, 3934174, 5257082, 6914122, 8964936, 11475878, 14520370, 18179258, 22541172, 27702886, 33769670, 40855654, 49084180]

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

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