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.

A269118 Number of sequences with 8 copies each of 1,2,...,n avoiding the pattern 12...n.

Table of values

n a(n)
0 0
1 0
2 1
3 15168751
4 1020149742404727
5 285867869484243410805931
6 276745258345325814650980975177139
7 789007694236868030155290867470985247486401
8 5841526335200139692050292842849347521755651331941759
9 101741646114927245552012617872560516024563394870390766150081895

List of values

[0, 0, 1, 15168751, 1020149742404727, 285867869484243410805931, 276745258345325814650980975177139, 789007694236868030155290867470985247486401, 5841526335200139692050292842849347521755651331941759, 101741646114927245552012617872560516024563394870390766150081895]

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

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