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.

A083385 Total height of all elements in all preferential arrangements of n elements, where elements at the bottom level have height 1.

Table of values

n a(n)
1 1
2 8
3 66
4 616
5 6530
6 77964
7 1037974
8 15266192
9 246003354
10 4312200340
11 81714050462
12 1664849747928
13 36296654286178
14 843235868819036
15 20797267023597030
16 542745686844469024
17 14942598078715420202
18 432842048921633654052
19 13159824571927634917678
20 419012563973742290424680

List of values

[1, 8, 66, 616, 6530, 77964, 1037974, 15266192, 246003354, 4312200340, 81714050462, 1664849747928, 36296654286178, 843235868819036, 20797267023597030, 542745686844469024, 14942598078715420202, 432842048921633654052, 13159824571927634917678, 419012563973742290424680]

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

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