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.

A316653 Number of series-reduced rooted identity trees with n leaves spanning an initial interval of positive integers.

Table of values

n a(n)
1 1
2 1
3 6
4 58
5 774
6 13171
7 272700
8 6655962
9 187172762
10 5959665653
11 211947272186
12 8327259067439
13 358211528524432
14 16744766791743136
15 845195057333580332
16 45814333121920927067
17 2654330505021077873594
18 163687811930206581162063
19 10705203621191765328300832

List of values

[1, 1, 6, 58, 774, 13171, 272700, 6655962, 187172762, 5959665653, 211947272186, 8327259067439, 358211528524432, 16744766791743136, 845195057333580332, 45814333121920927067, 2654330505021077873594, 163687811930206581162063, 10705203621191765328300832]

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

Content is available under The OEIS End-User License Agreement.