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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.

A195236 Number of lower triangles of a 6 X 6 0..n array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by one or less.

Table of values

n a(n)
1 2097152
2 10322065
3 20729610
4 31374671
5 42029278
6 52683885
7 63338492
8 73993099
9 84647706
10 95302313
11 105956920
12 116611527
13 127266134
14 137920741
15 148575348
16 159229955
17 169884562
18 180539169
19 191193776
20 201848383
21 212502990
22 223157597

List of values

[2097152, 10322065, 20729610, 31374671, 42029278, 52683885, 63338492, 73993099, 84647706, 95302313, 105956920, 116611527, 127266134, 137920741, 148575348, 159229955, 169884562, 180539169, 191193776, 201848383, 212502990, 223157597]

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

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