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.

A073191 Number of separate orbits/cycles to which the Catalan bijections A072796/A072797 partition each A000108(n) structures encoded in the range [A014137(n-1)..A014138(n-1)] of the sequence A014486/A063171.

Table of values

n a(n)
0 1
1 1
2 2
3 4
4 11
5 31
6 96
7 305
8 1007
9 3389
10 11636
11 40498
12 142714
13 507870
14 1823040
15 6591885
16 23989419
17 87795473
18 322922652
19 1193058230
20 4425547638
21 16475756738
22 61539293424
23 230548633954
24 866095934598
25 3261868457698
26 12313423931624

List of values

[1, 1, 2, 4, 11, 31, 96, 305, 1007, 3389, 11636, 40498, 142714, 507870, 1823040, 6591885, 23989419, 87795473, 322922652, 1193058230, 4425547638, 16475756738, 61539293424, 230548633954, 866095934598, 3261868457698, 12313423931624]

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

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