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.

A177319 Number of permutations of n copies of 1..7 with all adjacent differences <= 1 in absolute value.

Table of values

n a(n)
0 1
1 2
2 148
3 41618
4 16699380
5 8039989002
6 4339892975512
7 2535604038015218
8 1570273521448103668
9 1016915629343040544250
10 682308706348352869913148
11 471167961102713571612302730
12 333217453890900855796193690520
13 240438319207137787818120695999370

List of values

[1, 2, 148, 41618, 16699380, 8039989002, 4339892975512, 2535604038015218, 1570273521448103668, 1016915629343040544250, 682308706348352869913148, 471167961102713571612302730, 333217453890900855796193690520, 240438319207137787818120695999370]

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

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