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.

A235443 Number of (n+1) X (2+1) 0..1 arrays with the difference between each 2 X 2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise.

Table of values

n a(n)
1 58
2 382
3 2476
4 15936
5 102376
6 657290
7 4219322
8 27083638
9 173846264
10 1115891712
11 7162725052
12 45976338618
13 295114433334
14 1894290182854
15 12159131749324
16 78047432228320
17 500973408338488
18 3215664483364362
19 20640812260995146

List of values

[58, 382, 2476, 15936, 102376, 657290, 4219322, 27083638, 173846264, 1115891712, 7162725052, 45976338618, 295114433334, 1894290182854, 12159131749324, 78047432228320, 500973408338488, 3215664483364362, 20640812260995146]

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

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