A090428 - cp's OEIS frontend

A090428 Numbers that are k-gons for two or more k's, where k = 3, 4, 5, ..., 16.

n	a(n)
1	1
2	6
3	9
4	10
5	12
6	15
7	16
8	21
9	28
10	36
11	45
12	55
13	64
14	66
15	70
16	81
17	91
18	105
19	120
20	145
21	153
22	171
23	176
24	190
25	196
26	210
27	225
28	231
29	276
30	280
31	325
32	378
33	400
34	435
35	441
36	477
37	496
38	540
39	561
40	595
41	616
42	630
43	651
44	703
45	715
46	780
47	833
48	861
49	936
50	946
51	1035
52	1089
53	1105
54	1128
55	1216

[1, 6, 9, 10, 12, 15, 16, 21, 28, 36, 45, 55, 64, 66, 70, 81, 91, 105, 120, 145, 153, 171, 176, 190, 196, 210, 225, 231, 276, 280, 325, 378, 400, 435, 441, 477, 496, 540, 561, 595, 616, 630, 651, 703, 715, 780, 833, 861, 936, 946, 1035, 1089, 1105, 1128, 1216]

cp's OEIS Frontend

A090428 Numbers that are k-gons for two or more k's, where k = 3, 4, 5, ..., 16.

Table of values

List of values