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.

A205821 Number of (n+1) X 7 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock unequal to the number of counterclockwise edge increases.

Table of values

n a(n)
1 3672
2 28242
3 230532
4 2158482
5 20842578
6 206195280
7 2053746000
8 20547395916
9 205854316380
10 2064129121566
11 20703020123544
12 207684698582640
13 2083530777092724
14 20903078814105732
15 209713177538231946

List of values

[3672, 28242, 230532, 2158482, 20842578, 206195280, 2053746000, 20547395916, 205854316380, 2064129121566, 20703020123544, 207684698582640, 2083530777092724, 20903078814105732, 209713177538231946]

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

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