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.

A302899 Number of permutations of [n] having exactly six alternating descents.

Table of values

n a(n)
7 272
8 3407
9 46348
10 556952
11 6847224
12 84889638
13 1085246904
14 14322115212
15 195951082944
16 2781436057021
17 40985527637668
18 626827892111140
19 9945795998932920
20 163614736611741324
21 2788498384849238640
22 49195762917367001256
23 897689701635240236352
24 16927557342294928274187

List of values

[272, 3407, 46348, 556952, 6847224, 84889638, 1085246904, 14322115212, 195951082944, 2781436057021, 40985527637668, 626827892111140, 9945795998932920, 163614736611741324, 2788498384849238640, 49195762917367001256, 897689701635240236352, 16927557342294928274187]

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

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