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.

A222508 Number of nX7 0..1 arrays with exactly floor(nX7/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.

Table of values

n a(n)
1 5
2 44
3 441
4 8489
5 81537
6 1802656
7 19892241
8 473772613
9 5455705052
10 132847734428
11 1556509083100
12 38249750511090
13 451888833065131
14 11163258877769638
15 132555800154675325
16 3286688523503328223
17 39169490256183059057

List of values

[5, 44, 441, 8489, 81537, 1802656, 19892241, 473772613, 5455705052, 132847734428, 1556509083100, 38249750511090, 451888833065131, 11163258877769638, 132555800154675325, 3286688523503328223, 39169490256183059057]

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

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