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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.

A185565 1/4 the number of nX7 0..3 arrays with no element equal both to the element above and to the element to its left.

Table of values

n a(n)
1 4096
2 45562500
3 504547256880
4 5586628402633500
5 61858104930689319360
6 684925618712729136913980
7 7583858300260627032845531520
8 83972485690826213759616527499540
9 929787724653148422947168982361958940

List of values

[4096, 45562500, 504547256880, 5586628402633500, 61858104930689319360, 684925618712729136913980, 7583858300260627032845531520, 83972485690826213759616527499540, 929787724653148422947168982361958940]

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

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