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.

A366866 Number of binary relations R on [n] such that the transitive closure of R contains the identity relation.

Table of values

n a(n)
0 1
1 1
2 7
3 253
4 39463
5 24196201
6 56481554827
7 502872837857293
8 17309567681965278223
9 2333553047265268677638161
10 1243013506394568266481053180947
11 2629978323181659930952963974617537173
12 22170279317365870690118601982232935268994583

List of values

[1, 1, 7, 253, 39463, 24196201, 56481554827, 502872837857293, 17309567681965278223, 2333553047265268677638161, 1243013506394568266481053180947, 2629978323181659930952963974617537173, 22170279317365870690118601982232935268994583]

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

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