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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.

A163007 Number of n X 7 binary arrays with all 1s connected and a path of 1s from upper left corner to lower right corner.

Table of values

n a(n)
1 1
2 288
3 30616
4 2473317
5 185899132
6 13742823032
7 1012326365581
8 74513820639189
9 5483824484276487
10 403566354707763962
11 29699049493529506304
12 2185591507222956126904
13 160840358014084186505186
14 11836434997659016450700108
15 871057350099281882543862533

List of values

[1, 288, 30616, 2473317, 185899132, 13742823032, 1012326365581, 74513820639189, 5483824484276487, 403566354707763962, 29699049493529506304, 2185591507222956126904, 160840358014084186505186, 11836434997659016450700108, 871057350099281882543862533]

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

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