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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.

A223797 Number of nX4 0..3 arrays with rows and antidiagonals unimodal.

Table of values

n a(n)
1 130
2 16900
3 1658703
4 151310069
5 13602542576
6 1216562667529
7 108631485025292
8 9695922803812530
9 865293308203272685
10 77218182866179219113
11 6890814828420641198100
12 614921940899081513160269

List of values

[130, 16900, 1658703, 151310069, 13602542576, 1216562667529, 108631485025292, 9695922803812530, 865293308203272685, 77218182866179219113, 6890814828420641198100, 614921940899081513160269]

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

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