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.

A210914 Number of transitive reflexive early confluent binary relations R on n labeled elements where |{y : xRy}| <= 6 for all x.

Table of values

n a(n)
0 1
1 1
2 4
3 26
4 243
5 2992
6 45906
7 797994
8 15774047
9 348543878
10 8517326911
11 228090873748
12 6641805913833
13 208882903017855
14 7054977212140236
15 254641097826922363
16 9780088146805724737
17 398202474048334638184
18 17130262219179411169927
19 776303072938412423933278

List of values

[1, 1, 4, 26, 243, 2992, 45906, 797994, 15774047, 348543878, 8517326911, 228090873748, 6641805913833, 208882903017855, 7054977212140236, 254641097826922363, 9780088146805724737, 398202474048334638184, 17130262219179411169927, 776303072938412423933278]

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

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