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.

A284221 Number of n X 7 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 33
2 1746
3 163708
4 17538010
5 1970768869
6 227677212684
7 26772321109067
8 3187484402643589
9 383012404461341362
10 46352294274050867321
11 5641487492728040767503
12 689803988820235909398592

List of values

[33, 1746, 163708, 17538010, 1970768869, 227677212684, 26772321109067, 3187484402643589, 383012404461341362, 46352294274050867321, 5641487492728040767503, 689803988820235909398592]

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

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