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.

A259422 Number of (n+1)X(3+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0001 0011 or 0111.

Table of values

n a(n)
1 142
2 1366
3 12953
4 123306
5 1172659
6 11155819
7 106118138
8 1009466878
9 9602626846
10 91346008647
11 868937609248
12 8265855103277
13 78629755083895
14 747973270226802
15 7115169104694298
16 67683744437222992
17 643848260656503313

List of values

[142, 1366, 12953, 123306, 1172659, 11155819, 106118138, 1009466878, 9602626846, 91346008647, 868937609248, 8265855103277, 78629755083895, 747973270226802, 7115169104694298, 67683744437222992, 643848260656503313]

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

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