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.

A240191 Number of nX6 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or three plus the sum of the elements diagonally to its northwest, modulo 4.

Table of values

n a(n)
1 1
2 50
3 1908
4 40765
5 1399773
6 28061567
7 733907809
8 19388521135
9 394134037392
10 10503093361772
11 254148197056864
12 5694113978673887
13 149969038048214610
14 3469042519947752022
15 82120588801140926261
16 2085283919698276811475

List of values

[1, 50, 1908, 40765, 1399773, 28061567, 733907809, 19388521135, 394134037392, 10503093361772, 254148197056864, 5694113978673887, 149969038048214610, 3469042519947752022, 82120588801140926261, 2085283919698276811475]

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

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