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.

A203097 Number of nX4 0..3 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.

Table of values

n a(n)
1 50
2 12260
3 2029744
4 308642476
5 48260497186
6 7574530822364
7 1186165852092876
8 185750876557274124
9 29093266517684009316
10 4556642267438188534864
11 713660632715579444617080
12 111773747828249613604721774

List of values

[50, 12260, 2029744, 308642476, 48260497186, 7574530822364, 1186165852092876, 185750876557274124, 29093266517684009316, 4556642267438188534864, 713660632715579444617080, 111773747828249613604721774]

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

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