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.

A177301 Number of permutations of 5 copies of 1..n with all adjacent differences <= 1 in absolute value.

Table of values

n a(n)
0 1
1 1
2 252
3 7002
4 284002
5 8956752
6 276285002
7 8039989002
8 226901044252
9 6232521421502
10 167765555015002
11 4441865811412752
12 116042171156004002
13 2998175631045512002
14 76751828260736962252
15 1949598912568702682502
16 49197330547669842130002
17 1234523426440511782592752

List of values

[1, 1, 252, 7002, 284002, 8956752, 276285002, 8039989002, 226901044252, 6232521421502, 167765555015002, 4441865811412752, 116042171156004002, 2998175631045512002, 76751828260736962252, 1949598912568702682502, 49197330547669842130002, 1234523426440511782592752]

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

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