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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.

A231691 Cardinalities of the symmetric operad of dotted red and white trees.

Table of values

n a(n)
1 1
2 6
3 74
4 1476
5 41032
6 1464672
7 63865328
8 3290120832
9 195537380704
10 13169097667584
11 991181618539136
12 82450282595311104
13 7511417235983147008
14 743790032122343820288
15 79541198937597284060672
16 9136079502141558495310848
17 1121720442822518015112749056
18 146607501639123412303738884096
19 20322509742114322789584125210624
20 2978025324234142178848508363882496

List of values

[1, 6, 74, 1476, 41032, 1464672, 63865328, 3290120832, 195537380704, 13169097667584, 991181618539136, 82450282595311104, 7511417235983147008, 743790032122343820288, 79541198937597284060672, 9136079502141558495310848, 1121720442822518015112749056, 146607501639123412303738884096, 20322509742114322789584125210624, 2978025324234142178848508363882496]

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

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