A045949 - cp's OEIS frontend

A045949 Number of equilateral triangles formed out of matches that can be found in a hexagonal chunk of side length n in hexagonal array of matchsticks.

n	a(n)
0	0
1	6
2	38
3	116
4	262
5	496
6	840
7	1314
8	1940
9	2738
10	3730
11	4936
12	6378
13	8076
14	10052
15	12326
16	14920
17	17854
18	21150
19	24828
20	28910
21	33416
22	38368
23	43786
24	49692
25	56106
26	63050
27	70544
28	78610
29	87268
30	96540
31	106446
32	117008
33	128246
34	140182
35	152836
36	166230
37	180384
38	195320
39	211058

[0, 6, 38, 116, 262, 496, 840, 1314, 1940, 2738, 3730, 4936, 6378, 8076, 10052, 12326, 14920, 17854, 21150, 24828, 28910, 33416, 38368, 43786, 49692, 56106, 63050, 70544, 78610, 87268, 96540, 106446, 117008, 128246, 140182, 152836, 166230, 180384, 195320, 211058]

cp's OEIS Frontend

A045949 Number of equilateral triangles formed out of matches that can be found in a hexagonal chunk of side length n in hexagonal array of matchsticks.

Table of values

List of values