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.

A089407 Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A089859/A089863.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 4
5 11
6 34
7 109
8 360
9 1219
10 4206
11 14708
12 52024
13 185758
14 668676
15 2423821
16 8839632
17 32411555
18 119410390
19 441817020
20 1641032536
21 6116570954
22 22870649308
23 85764918130
24 322476066224
25 1215486652366
26 4591838372044
27 17383387914792

List of values

[1, 1, 1, 2, 4, 11, 34, 109, 360, 1219, 4206, 14708, 52024, 185758, 668676, 2423821, 8839632, 32411555, 119410390, 441817020, 1641032536, 6116570954, 22870649308, 85764918130, 322476066224, 1215486652366, 4591838372044, 17383387914792]

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

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