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.

A218059 Number of n X 3 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..1 n X 3 array.

Table of values

n a(n)
1 4
2 18
3 74
4 308
5 1282
6 5338
7 22228
8 92562
9 385450
10 1605108
11 6684066
12 27834106
13 115908116
14 482670130
15 2009958090
16 8369963828
17 34854604610
18 145143215386
19 604412335444
20 2516922821842
21 10481090672106
22 43645860224116

List of values

[4, 18, 74, 308, 1282, 5338, 22228, 92562, 385450, 1605108, 6684066, 27834106, 115908116, 482670130, 2009958090, 8369963828, 34854604610, 145143215386, 604412335444, 2516922821842, 10481090672106, 43645860224116]

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

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