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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.

A263123 Number of (n+3)X(5+3) 0..1 arrays with each row divisible by 15 and column not divisible by 15, read as a binary number with top and left being the most significant bits.

Table of values

n a(n)
1 52446
2 887805
3 17782827
4 344322375
5 6946980030
6 113558538589
7 2022945129963
8 36861501672007
9 713132356848318
10 12055652684915197

List of values

[52446, 887805, 17782827, 344322375, 6946980030, 113558538589, 2022945129963, 36861501672007, 713132356848318, 12055652684915197]

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

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