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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.

A223570 Number of n X n 0..2 arrays with antidiagonals unimodal.

Table of values

n a(n)
1 3
2 81
3 16038
4 16230456
5 64207683936
6 817235401137408
7 28907250609032395776
8 2535541672670058530700288
9 503424192483622111094950081536
10 209983768351036102380925723459562496

List of values

[3, 81, 16038, 16230456, 64207683936, 817235401137408, 28907250609032395776, 2535541672670058530700288, 503424192483622111094950081536, 209983768351036102380925723459562496]

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

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