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.

A177307 Number of permutations of 7 copies of 1..n with all adjacent differences <= 1 in absolute value.

Table of values

n a(n)
0 1
1 1
2 3432
3 623576
4 201922730
5 48203722464
6 11408205434138
7 2535604038015218
8 546641872918476120
9 114573118435555703030
10 23513682407867601161354
11 4742254932865402388419776
12 942857462878069039167940082
13 185226548794692635344238756018
14 36021105095432337381819132791160

List of values

[1, 1, 3432, 623576, 201922730, 48203722464, 11408205434138, 2535604038015218, 546641872918476120, 114573118435555703030, 23513682407867601161354, 4742254932865402388419776, 942857462878069039167940082, 185226548794692635344238756018, 36021105095432337381819132791160]

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

Content is available under The OEIS End-User License Agreement.