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.

A251059 Number of (n+1)X(2+1) 0..2 arrays with no 2X2 subblock having x11-x00 less than x10-x01.

Table of values

n a(n)
1 222
2 2740
3 31895
4 379440
5 4499219
6 53420941
7 634161915
8 7528829372
9 89381885986
10 1061143804301
11 12597914485712
12 149562686271463
13 1775611051165233
14 21080088759507993
15 250263221101743326
16 2971129803512557016

List of values

[222, 2740, 31895, 379440, 4499219, 53420941, 634161915, 7528829372, 89381885986, 1061143804301, 12597914485712, 149562686271463, 1775611051165233, 21080088759507993, 250263221101743326, 2971129803512557016]

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

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