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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.

A358650 Matula-Goebel tree number of the binomial tree of n vertices.

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 12
6 18
7 42
8 78
9 156
10 234
11 546
12 1014
13 2886
14 4758
15 14118
16 30966
17 61932
18 92898
19 216762
20 402558
21 1145742
22 1888926
23 5604846
24 12293502
25 28210026
26 45860646
27 121727346
28 249864654
29 813198126
30 1423166394
31 4740553974
32 11234495766
33 22468991532
34 33703487298

List of values

[1, 2, 4, 6, 12, 18, 42, 78, 156, 234, 546, 1014, 2886, 4758, 14118, 30966, 61932, 92898, 216762, 402558, 1145742, 1888926, 5604846, 12293502, 28210026, 45860646, 121727346, 249864654, 813198126, 1423166394, 4740553974, 11234495766, 22468991532, 33703487298]

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

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