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.

A089848 Number of fixed points in range [A014137(n-1)..A014138(n-1)] of permutation A089851/A089853.

Table of values

n a(n)
0 1
1 1
2 2
3 2
4 5
5 15
6 42
7 132
8 431
9 1430
10 4862
11 16801
12 58786
13 208012
14 742914
15 2674440
16 9694845
17 35357712
18 129644790
19 477638700
20 1767263322
21 6564120420
22 24466267020
23 91482564069
24 343059613650
25 1289904147324
26 4861946402882
27 18367353072152

List of values

[1, 1, 2, 2, 5, 15, 42, 132, 431, 1430, 4862, 16801, 58786, 208012, 742914, 2674440, 9694845, 35357712, 129644790, 477638700, 1767263322, 6564120420, 24466267020, 91482564069, 343059613650, 1289904147324, 4861946402882, 18367353072152]

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

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