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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.

A136723 Number of preferential arrangements (or hierarchical orderings) on the connected graphs on n labeled nodes.

Table of values

n a(n)
0 1
1 1
2 3
3 52
4 2850
5 393848
6 125054832
7 88260845008
8 137304025714320
9 469859118159233792
10 3527181890877230433408
11 57833314494643038031674112
12 2060645597746315164145860149760
13 158727775101107953869596632383822848
14 26301662700662611321804753231934678909952

List of values

[1, 1, 3, 52, 2850, 393848, 125054832, 88260845008, 137304025714320, 469859118159233792, 3527181890877230433408, 57833314494643038031674112, 2060645597746315164145860149760, 158727775101107953869596632383822848, 26301662700662611321804753231934678909952]

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

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