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.

A251095 Number of (n+1)X(3+1) 0..1 arrays with no 2X2 subblock having its minimum diagonal element less than its minimum antidiagonal element.

Table of values

n a(n)
1 129
2 1109
3 9597
4 82814
5 713769
6 6151051
7 53009570
8 456842112
9 3937123328
10 33930621210
11 292418287803
12 2520096887534
13 21718506027532
14 187172766061609
15 1613078004734497
16 13901705381759445
17 119806613163586853

List of values

[129, 1109, 9597, 82814, 713769, 6151051, 53009570, 456842112, 3937123328, 33930621210, 292418287803, 2520096887534, 21718506027532, 187172766061609, 1613078004734497, 13901705381759445, 119806613163586853]

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

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