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.

A207728 Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 1 and 1 0 1 vertically.

Table of values

n a(n)
1 40
2 1600
3 6016
4 33063
5 211680
6 1029231
7 4799749
8 23473944
9 111527152
10 517774120
11 2415619129
12 11251097760
13 52094413065
14 240990441237
15 1114766044504
16 5150494925352
17 23781871171576
18 109797744696883
19 506801727014800

List of values

[40, 1600, 6016, 33063, 211680, 1029231, 4799749, 23473944, 111527152, 517774120, 2415619129, 11251097760, 52094413065, 240990441237, 1114766044504, 5150494925352, 23781871171576, 109797744696883, 506801727014800]

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

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