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.

A267752 Number of 4Xn arrays containing n copies of 0..4-1 with every element equal to or 1 greater than any north neighbor modulo 4 and the upper left element equal to 0.

Table of values

n a(n)
1 1
2 8
3 118
4 2386
5 54956
6 1350674
7 34568612
8 910791802
9 24537293344
10 672857207788
11 18718820026952
12 527018609703106
13 14988164468962816
14 429939684328203092
15 12424959589420164728
16 361409602487910188762
17 10572662501852062471576

List of values

[1, 8, 118, 2386, 54956, 1350674, 34568612, 910791802, 24537293344, 672857207788, 18718820026952, 527018609703106, 14988164468962816, 429939684328203092, 12424959589420164728, 361409602487910188762, 10572662501852062471576]

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

Content is available under The OEIS End-User License Agreement.