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.

A251366 Number of (n+1) X (1+1) 0..2 arrays with every 2 X 2 subblock summing to 1 2 3 4 5 6 or 7.

Table of values

n a(n)
1 79
2 695
3 6113
4 53769
5 472943
6 4159927
7 36590017
8 321839625
9 2830847119
10 24899654327
11 219013164449
12 1926402895881
13 16944315318191
14 149039342816695
15 1310924949760897
16 11530674997804041
17 101421874630758607

List of values

[79, 695, 6113, 53769, 472943, 4159927, 36590017, 321839625, 2830847119, 24899654327, 219013164449, 1926402895881, 16944315318191, 149039342816695, 1310924949760897, 11530674997804041, 101421874630758607]

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

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