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.

A199653 Number of nX6 0..2 arrays with values 0..2 introduced in row major order and each element equal to no more than two horizontal and vertical neighbors.

Table of values

n a(n)
1 122
2 67774
3 31120632
4 14399942873
5 6663970316970
6 3083761998081891
7 1427019666767669979
8 660357476435139192982
9 305582323780950052573456
10 141409100632588861437301956
11 65437468685616944338442793185

List of values

[122, 67774, 31120632, 14399942873, 6663970316970, 3083761998081891, 1427019666767669979, 660357476435139192982, 305582323780950052573456, 141409100632588861437301956, 65437468685616944338442793185]

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

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