A175589 - cp's OEIS frontend

A175589 Numbers k that divide the sum of digits of 21^k.

n	a(n)
1	1
2	3
3	6
4	9
5	12
6	18
7	57
8	84
9	87
10	102
11	117
12	216
13	234
14	288
15	360
16	468
17	477
18	681
19	741
20	798
21	987
22	1029
23	1161
24	1245
25	1251
26	1266
27	1449
28	1458
29	1500
30	1677
31	2214
32	2232
33	2703
34	2880
35	3090
36	3117
37	3333
38	3345
39	3351
40	3789
41	4176
42	4512
43	4779
44	4932
45	4980
46	5763
47	6213
48	6846
49	6903
50	6918
51	8097
52	8712
53	9285
54	10404
55	11085
56	11274
57	11532
58	11922
59	12369
60	12378
61	14871
62	16710

[1, 3, 6, 9, 12, 18, 57, 84, 87, 102, 117, 216, 234, 288, 360, 468, 477, 681, 741, 798, 987, 1029, 1161, 1245, 1251, 1266, 1449, 1458, 1500, 1677, 2214, 2232, 2703, 2880, 3090, 3117, 3333, 3345, 3351, 3789, 4176, 4512, 4779, 4932, 4980, 5763, 6213, 6846, 6903, 6918, 8097, 8712, 9285, 10404, 11085, 11274, 11532, 11922, 12369, 12378, 14871, 16710]

cp's OEIS Frontend

A175589 Numbers k that divide the sum of digits of 21^k.

Table of values

List of values