A229461 - cp's OEIS frontend

A229461 Numbers k such that there is no convex pentagon that can be decomposed into k pairwise congruent regular equilateral triangles.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	12
11	13
12	16
13	18
14	21
15	22
16	24
17	25
18	30
19	33
20	37
21	40
22	42
23	45
24	48
25	57
26	58
27	70
28	72
29	78
30	85
31	88
32	93
33	102
34	105
35	120
36	130
37	133
38	165
39	168
40	177
41	190
42	210
43	232
44	253
45	273
46	280
47	312
48	330
49	345
50	357
51	385
52	408
53	462
54	520
55	760
56	840
57	1320
58	1365
59	1848

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 16, 18, 21, 22, 24, 25, 30, 33, 37, 40, 42, 45, 48, 57, 58, 70, 72, 78, 85, 88, 93, 102, 105, 120, 130, 133, 165, 168, 177, 190, 210, 232, 253, 273, 280, 312, 330, 345, 357, 385, 408, 462, 520, 760, 840, 1320, 1365, 1848]

cp's OEIS Frontend

A229461 Numbers k such that there is no convex pentagon that can be decomposed into k pairwise congruent regular equilateral triangles.

Table of values

List of values