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.

A056665 Number of equivalence classes of n-valued Post functions of 1 variable under action of complementing group C(1,n).

Table of values

n a(n)
1 1
2 3
3 11
4 70
5 629
6 7826
7 117655
8 2097684
9 43046889
10 1000010044
11 25937424611
12 743008623292
13 23298085122493
14 793714780783770
15 29192926025492783
16 1152921504875290696
17 48661191875666868497
18 2185911559749720272442
19 104127350297911241532859

List of values

[1, 3, 11, 70, 629, 7826, 117655, 2097684, 43046889, 1000010044, 25937424611, 743008623292, 23298085122493, 793714780783770, 29192926025492783, 1152921504875290696, 48661191875666868497, 2185911559749720272442, 104127350297911241532859]

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

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