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.

A251367 Number of (n+1) X (2+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)
1 695
2 17969
3 464393
4 12002283
5 310199103
6 8017100977
7 207202101873
8 5355141623323
9 138403720518311
10 3577046360518609
11 92448820142650873
12 2389341228591410219
13 61752562096926105327
14 1595995950642355498897

List of values

[695, 17969, 464393, 12002283, 310199103, 8017100977, 207202101873, 5355141623323, 138403720518311, 3577046360518609, 92448820142650873, 2389341228591410219, 61752562096926105327, 1595995950642355498897]

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

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