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.

A177313 Number of permutations of 9 copies of 1..n with all adjacent differences <= 1 in absolute value.

Table of values

n a(n)
0 1
1 1
2 48620
3 60110030
4 161686253810
5 304100156874800
6 574996024253854586
7 1016915629343040544250
8 1745708356607370063330620
9 2911820015993491302722966990
10 4754502826758413615581742528138
11 7626389809822483147908697112197520
12 12055478550658617275428327115583119762

List of values

[1, 1, 48620, 60110030, 161686253810, 304100156874800, 574996024253854586, 1016915629343040544250, 1745708356607370063330620, 2911820015993491302722966990, 4754502826758413615581742528138, 7626389809822483147908697112197520, 12055478550658617275428327115583119762]

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

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