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.

A283038 Number of nX4 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element.

Table of values

n a(n)
1 2
2 68
3 818
4 9152
5 94368
6 931844
7 8912378
8 83420984
9 767704036
10 6973000128
11 62669779812
12 558371394860
13 4938938283902
14 43417600038648
15 379661067157816
16 3304658457345168
17 28648616561102224
18 247474652799713212

List of values

[2, 68, 818, 9152, 94368, 931844, 8912378, 83420984, 767704036, 6973000128, 62669779812, 558371394860, 4938938283902, 43417600038648, 379661067157816, 3304658457345168, 28648616561102224, 247474652799713212]

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

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