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.

A123297 Number of permutations of n distinct letters (ABCD...) each of which appears 5 times and having no fixed points.

Table of values

n a(n)
0 1
1 0
2 1
3 2252
4 44127009
5 2671644472544
6 413723943299025265
7 142244957218019486750604
8 97613348575755314842878968833
9 123144020654635535717072991038686496
10 267585539125011749129687143446506422964961
11 950060633410906693026597892010516600171358115820

List of values

[1, 0, 1, 2252, 44127009, 2671644472544, 413723943299025265, 142244957218019486750604, 97613348575755314842878968833, 123144020654635535717072991038686496, 267585539125011749129687143446506422964961, 950060633410906693026597892010516600171358115820]

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

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