A367119 - cp's OEIS frontend

A367119 Place n points in general position on each side of an equilateral triangle, and join every pair of the 3*n+3 boundary points by a chord; sequence gives number of edges in the resulting planar graph.

n	a(n)
0	3
1	24
2	153
3	588
4	1635
5	3708
6	7329
7	13128
8	21843
9	34320
10	51513
11	74484
12	104403
13	142548
14	190305
15	249168
16	320739
17	406728
18	508953
19	629340
20	769923
21	932844
22	1120353
23	1334808
24	1578675
25	1854528
26	2165049
27	2513028
28	2901363
29	3333060
30	3811233
31	4339104
32	4920003
33	5557368
34	6254745
35	7015788

[3, 24, 153, 588, 1635, 3708, 7329, 13128, 21843, 34320, 51513, 74484, 104403, 142548, 190305, 249168, 320739, 406728, 508953, 629340, 769923, 932844, 1120353, 1334808, 1578675, 1854528, 2165049, 2513028, 2901363, 3333060, 3811233, 4339104, 4920003, 5557368, 6254745, 7015788]

cp's OEIS Frontend

A367119 Place n points in general position on each side of an equilateral triangle, and join every pair of the 3*n+3 boundary points by a chord; sequence gives number of edges in the resulting planar graph.

Table of values

List of values