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.

A275180 Number of n X 5 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,0) or (-1,1) and new values introduced in order 0..2.

Table of values

n a(n)
1 41
2 256
3 317
4 482
5 1465
6 4603
7 14643
8 46799
9 149772
10 479722
11 1538582
12 4942028
13 15891866
14 51127466
15 164489244
16 529125544
17 1701961499
18 5474696445
19 17611978722
20 56660560468
21 182287542046
22 586443173365
23 1886643497675
24 6069534405199

List of values

[41, 256, 317, 482, 1465, 4603, 14643, 46799, 149772, 479722, 1538582, 4942028, 15891866, 51127466, 164489244, 529125544, 1701961499, 5474696445, 17611978722, 56660560468, 182287542046, 586443173365, 1886643497675, 6069534405199]

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

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