A380725 - cp's OEIS frontend

A380725 Positive integers k whose sum of digits equals the square of their number of digits.

n	a(n)
1	1
2	13
3	22
4	31
5	40
6	108
7	117
8	126
9	135
10	144
11	153
12	162
13	171
14	180
15	207
16	216
17	225
18	234
19	243
20	252
21	261
22	270
23	306
24	315
25	324
26	333
27	342
28	351
29	360
30	405
31	414
32	423
33	432
34	441
35	450
36	504
37	513
38	522
39	531
40	540
41	603
42	612
43	621
44	630
45	702
46	711
47	720
48	801
49	810
50	900
51	1069
52	1078
53	1087
54	1096
55	1159
56	1168
57	1177
58	1186
59	1195

[1, 13, 22, 31, 40, 108, 117, 126, 135, 144, 153, 162, 171, 180, 207, 216, 225, 234, 243, 252, 261, 270, 306, 315, 324, 333, 342, 351, 360, 405, 414, 423, 432, 441, 450, 504, 513, 522, 531, 540, 603, 612, 621, 630, 702, 711, 720, 801, 810, 900, 1069, 1078, 1087, 1096, 1159, 1168, 1177, 1186, 1195]

cp's OEIS Frontend

A380725 Positive integers k whose sum of digits equals the square of their number of digits.

Table of values

List of values