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.

A089880 Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A069772.

Table of values

n a(n)
0 1
1 1
2 2
3 3
4 10
5 22
6 76
7 217
8 750
9 2438
10 8524
11 29414
12 104468
13 371516
14 1338936
15 4847637
16 17685270
17 64823110
18 238843660
19 883634026
20 3282152588
21 12233141908
22 45741634536
23 171529836218
24 644953425740
25 2430973304732
26 9183681736376

List of values

[1, 1, 2, 3, 10, 22, 76, 217, 750, 2438, 8524, 29414, 104468, 371516, 1338936, 4847637, 17685270, 64823110, 238843660, 883634026, 3282152588, 12233141908, 45741634536, 171529836218, 644953425740, 2430973304732, 9183681736376]

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

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