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.

A202534 Number of symmetric, reflexive, non-transitive relations on n elements.

Table of values

n a(n)
1 0
2 0
3 3
4 49
5 972
6 32565
7 2096275
8 268431316
9 68719455589
10 35184371972857
11 36028797018285398
12 73786976294833992867
13 302231454903657266032107
14 2475880078570760549607349126
15 40564819207303340847893119613487
16 1329227995784915872903807049800202429

List of values

[0, 0, 3, 49, 972, 32565, 2096275, 268431316, 68719455589, 35184371972857, 36028797018285398, 73786976294833992867, 302231454903657266032107, 2475880078570760549607349126, 40564819207303340847893119613487, 1329227995784915872903807049800202429]

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

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