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.

A209459 Number of nX2 0..6 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..6 introduced in row major order.

Table of values

n a(n)
1 2
2 6
3 57
4 700
5 10676
6 192994
7 3966581
8 89157292
9 2122477292
10 52308803176
11 1315354516436
12 33456562887760
13 856485703088336
14 22005434702222368
15 566526069249475088
16 14601678389694957760
17 376583948372941600448

List of values

[2, 6, 57, 700, 10676, 192994, 3966581, 89157292, 2122477292, 52308803176, 1315354516436, 33456562887760, 856485703088336, 22005434702222368, 566526069249475088, 14601678389694957760, 376583948372941600448]

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

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