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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.

A251796 Number of (n+1)X(3+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01.

Table of values

n a(n)
1 6627
2 348679
3 17195593
4 873945739
5 44356434596
6 2255553135793
7 114701510008550
8 5833986692886877
9 296731470002944944
10 15092940450644308394
11 767684502371802140711
12 39047592997403421809265

List of values

[6627, 348679, 17195593, 873945739, 44356434596, 2255553135793, 114701510008550, 5833986692886877, 296731470002944944, 15092940450644308394, 767684502371802140711, 39047592997403421809265]

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

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