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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.

A217641 Number of nX4 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random 0..2 nX4 array.

Table of values

n a(n)
1 17
2 91
3 877
4 8363
5 80653
6 779051
7 7531727
8 72877045
9 704989101
10 6820892171
11 65993636901
12 638497154509
13 6177606843163
14 59769632055785
15 578284005053917
16 5595022879846267
17 54133051863934891
18 523748973561990577

List of values

[17, 91, 877, 8363, 80653, 779051, 7531727, 72877045, 704989101, 6820892171, 65993636901, 638497154509, 6177606843163, 59769632055785, 578284005053917, 5595022879846267, 54133051863934891, 523748973561990577]

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

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