A268135 - cp's OEIS frontend

A268135 Numbers n such that the digit sum of n^2 is a divisor of the digit sum of n.

n	a(n)
1	1
2	9
3	10
4	18
5	19
6	45
7	46
8	55
9	90
10	99
11	100
12	145
13	149
14	180
15	189
16	190
17	198
18	199
19	289
20	351
21	361
22	369
23	379
24	388
25	450
26	451
27	459
28	460
29	468
30	495
31	496
32	549
33	550
34	558
35	559
36	568
37	585
38	595
39	639
40	729
41	739
42	775
43	838
44	855
45	900
46	954
47	955
48	990
49	999
50	1000
51	1049
52	1098
53	1099
54	1179
55	1188
56	1189
57	1198

[1, 9, 10, 18, 19, 45, 46, 55, 90, 99, 100, 145, 149, 180, 189, 190, 198, 199, 289, 351, 361, 369, 379, 388, 450, 451, 459, 460, 468, 495, 496, 549, 550, 558, 559, 568, 585, 595, 639, 729, 739, 775, 838, 855, 900, 954, 955, 990, 999, 1000, 1049, 1098, 1099, 1179, 1188, 1189, 1198]

cp's OEIS Frontend

A268135 Numbers n such that the digit sum of n^2 is a divisor of the digit sum of n.

Table of values

List of values