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.

A207998 Number of nX2 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).

Table of values

n a(n)
1 2
2 15
3 114
4 1657
5 36401
6 1094076
7 42436913
8 2042803419
9 118645071202
10 8138047375093
11 648222594284197
12 59148486677131940
13 6113429673418115581
14 708972517372901061559
15 91508202542991877872978
16 13053785934982985242672065

List of values

[2, 15, 114, 1657, 36401, 1094076, 42436913, 2042803419, 118645071202, 8138047375093, 648222594284197, 59148486677131940, 6113429673418115581, 708972517372901061559, 91508202542991877872978, 13053785934982985242672065]

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

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