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.

A286978 Number of n X 7 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1.

Table of values

n a(n)
1 3
2 2088
3 238532
4 27938670
5 3229944132
6 382399996325
7 45587718323826
8 5491408595796062
9 665386690317576640
10 81085002249528800607
11 9923283116879850553806
12 1218979761697887011274578

List of values

[3, 2088, 238532, 27938670, 3229944132, 382399996325, 45587718323826, 5491408595796062, 665386690317576640, 81085002249528800607, 9923283116879850553806, 1218979761697887011274578]

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

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