A152454 - cp's OEIS frontend

A152454 Irregular triangle in which row n lists the numbers whose proper divisors sum to n.

n	a(n)
2	4
3	9
4	6
5	25
6	8
7	10
8	49
9	15
10	14
11	21
12	121
13	27
14	35
15	22
16	169
17	16
18	33
19	12
20	26
21	39
22	55
23	289
24	65
25	77
26	34
27	361
28	18
29	51
30	91
31	20
32	38
33	57
34	85
35	529
36	95
37	119
38	143
39	46
40	69
41	133
42	28
43	115
44	187
45	841
46	32
47	125
48	161
49	209
50	221
51	58
52	961
53	45
54	87
55	247
56	62
57	93
58	145
59	253
60	24
61	155
62	203
63	299
64	323
65	1369

[4, 9, 6, 25, 8, 10, 49, 15, 14, 21, 121, 27, 35, 22, 169, 16, 33, 12, 26, 39, 55, 289, 65, 77, 34, 361, 18, 51, 91, 20, 38, 57, 85, 529, 95, 119, 143, 46, 69, 133, 28, 115, 187, 841, 32, 125, 161, 209, 221, 58, 961, 45, 87, 247, 62, 93, 145, 253, 24, 155, 203, 299, 323, 1369]

cp's OEIS Frontend

A152454 Irregular triangle in which row n lists the numbers whose proper divisors sum to n.

Table of values

List of values