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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.

A269115 Number of sequences with 5 copies each of 1,2,...,n avoiding the pattern 12...n.

Table of values

n a(n)
0 0
1 0
2 1
3 26945
4 1474050783
5 173996758190594
6 41489887418194798439
7 18675035107760751336633904
8 15006398706095549205738572240519
9 20584293980310480336378076914369061769
10 46436573450646384263588550418764923934014699

List of values

[0, 0, 1, 26945, 1474050783, 173996758190594, 41489887418194798439, 18675035107760751336633904, 15006398706095549205738572240519, 20584293980310480336378076914369061769, 46436573450646384263588550418764923934014699]

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

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