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.

A284219 Number of n X 5 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.

Table of values

n a(n)
1 10
2 143
3 3214
4 85887
5 2417194
6 69938626
7 2058141264
8 61304713234
9 1842647045686
10 55774782577154
11 1697707702343462
12 51912416104327610
13 1593418341131944098
14 49066300496202571019
15 1515066051729449019246
16 46893719654238123775675

List of values

[10, 143, 3214, 85887, 2417194, 69938626, 2058141264, 61304713234, 1842647045686, 55774782577154, 1697707702343462, 51912416104327610, 1593418341131944098, 49066300496202571019, 1515066051729449019246, 46893719654238123775675]

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

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