A254066 - cp's OEIS frontend

A254066 Primitive numbers n such that the sums of the digits of n and n^2 coincide.

n	a(n)
1	1
2	9
3	18
4	19
5	45
6	46
7	55
8	99
9	145
10	189
11	198
12	199
13	289
14	351
15	361
16	369
17	379
18	388
19	451
20	459
21	468
22	495
23	496
24	558
25	559
26	568
27	585
28	595
29	639
30	729
31	739
32	775
33	838
34	855
35	954
36	955
37	999
38	1098
39	1099
40	1179
41	1188
42	1189
43	1198
44	1269
45	1468
46	1485
47	1494
48	1495
49	1585
50	1738
51	1747

[1, 9, 18, 19, 45, 46, 55, 99, 145, 189, 198, 199, 289, 351, 361, 369, 379, 388, 451, 459, 468, 495, 496, 558, 559, 568, 585, 595, 639, 729, 739, 775, 838, 855, 954, 955, 999, 1098, 1099, 1179, 1188, 1189, 1198, 1269, 1468, 1485, 1494, 1495, 1585, 1738, 1747]

cp's OEIS Frontend

A254066 Primitive numbers n such that the sums of the digits of n and n^2 coincide.

Table of values

List of values