A366483 - cp's OEIS frontend

A366483 Place n equally spaced points on each side of an equilateral triangle, and join each of these points by a chord to the 2*n new points on the other two sides: sequence gives number of vertices in the resulting planar graph.

n	a(n)
0	3
1	6
2	22
3	108
4	300
5	919
6	1626
7	3558
8	5824
9	9843
10	14352
11	23845
12	30951
13	47196
14	62773
15	82488
16	104544
17	144784
18	173694
19	230008
20	276388
21	336927
22	403452
23	509218
24	582417
25	702228
26	824956
27	969387
28	1098312
29	1321978
30	1463580
31	1724190
32	1952509
33	2221497
34	2505169
35	2846908
36	3103788
37	3556143
38	3978763
39	4444003

[3, 6, 22, 108, 300, 919, 1626, 3558, 5824, 9843, 14352, 23845, 30951, 47196, 62773, 82488, 104544, 144784, 173694, 230008, 276388, 336927, 403452, 509218, 582417, 702228, 824956, 969387, 1098312, 1321978, 1463580, 1724190, 1952509, 2221497, 2505169, 2846908, 3103788, 3556143, 3978763, 4444003]

cp's OEIS Frontend

A366483 Place n equally spaced points on each side of an equilateral triangle, and join each of these points by a chord to the 2*n new points on the other two sides: sequence gives number of vertices in the resulting planar graph.

Table of values

List of values