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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.

A196015 Number of n X 6 0..4 arrays with each element equal to the number its horizontal and vertical neighbors within one of itself.

Table of values

n a(n)
1 1
2 5
3 16
4 91
5 316
6 708
7 3572
8 14607
9 54710
10 196832
11 782926
12 3062632
13 11714725
14 44732791
15 173085686
16 668753382
17 2573295221
18 9902406595
19 38178807169
20 147173375542
21 566944981911
22 2184078533126
23 8416292695545
24 32431165832934

List of values

[1, 5, 16, 91, 316, 708, 3572, 14607, 54710, 196832, 782926, 3062632, 11714725, 44732791, 173085686, 668753382, 2573295221, 9902406595, 38178807169, 147173375542, 566944981911, 2184078533126, 8416292695545, 32431165832934]

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

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