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.

A354847 Number of binary relations on [n] that are idempotent and reduced.

Table of values

n a(n)
0 1
1 2
2 6
3 32
4 318
5 5552
6 159126
7 7137272
8 484656318
9 48628712192
10 7076367228486
11 1471524821492552
12 432066672598422318
13 177354805872559516112
14 100928502119652298356726
15 79062670900333522721886872
16 84733519638342583432646258718
17 123582326772837258238596562116512
18 244150974458417420635453430918487846

List of values

[1, 2, 6, 32, 318, 5552, 159126, 7137272, 484656318, 48628712192, 7076367228486, 1471524821492552, 432066672598422318, 177354805872559516112, 100928502119652298356726, 79062670900333522721886872, 84733519638342583432646258718, 123582326772837258238596562116512, 244150974458417420635453430918487846]

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

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