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.

A271214 Number of reduced rearrangement patterns with n blocks.

Table of values

n a(n)
0 1
1 1
2 2
3 10
4 71
5 653
6 7638
7 104958
8 1664083
9 29740057
10 591645738
11 12959409010
12 309898317151
13 8032551265957
14 224316415082750
15 6714021923017318
16 214415538303362411
17 7277133405318569009
18 261560966377901961810
19 9925178291099012783322
20 396498148141095399675511

List of values

[1, 1, 2, 10, 71, 653, 7638, 104958, 1664083, 29740057, 591645738, 12959409010, 309898317151, 8032551265957, 224316415082750, 6714021923017318, 214415538303362411, 7277133405318569009, 261560966377901961810, 9925178291099012783322, 396498148141095399675511]

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

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