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.

A218646 Number of nX3 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random 0..3 nX3 array.

Table of values

n a(n)
1 16
2 66
3 610
4 4946
5 44712
6 391888
7 3441914
8 30316230
9 266671334
10 2346850058
11 20652411898
12 181738545458
13 1599310922692
14 14073950030962
15 123851052268298
16 1089892156540672
17 9591074382276762
18 84401670396996900
19 742736585615588566

List of values

[16, 66, 610, 4946, 44712, 391888, 3441914, 30316230, 266671334, 2346850058, 20652411898, 181738545458, 1599310922692, 14073950030962, 123851052268298, 1089892156540672, 9591074382276762, 84401670396996900, 742736585615588566]

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

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