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.

A000470 Number of permutations of an n-sequence discordant with three given permutations (see reference) in n-5 places.

Table of values

n a(n)
5 13
6 72
7 595
8 4096
9 39078
10 379760
11 4181826
12 49916448
13 647070333
14 9035216428
15 135236990388
16 2159812592384
17 36658601139066
18 658942295734944
19 12504663617290908
20 249823152134646144
21 5241223014084306270
22 115206851288747267148
23 2647678812396326064043

List of values

[13, 72, 595, 4096, 39078, 379760, 4181826, 49916448, 647070333, 9035216428, 135236990388, 2159812592384, 36658601139066, 658942295734944, 12504663617290908, 249823152134646144, 5241223014084306270, 115206851288747267148, 2647678812396326064043]

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

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