A109372 - cp's OEIS frontend

A109372 Numbers k such that k * (sum of the digits of k raised to their own power) + 1 is prime.

n	a(n)
1	1
2	11
3	12
4	20
5	33
6	34
7	35
8	36
9	52
10	64
11	75
12	79
13	84
14	94
15	95
16	102
17	104
18	110
19	112
20	121
21	138
22	163
23	167
24	170
25	174
26	184
27	192
28	200
29	217
30	231
31	235
32	246
33	250
34	255
35	256
36	321
37	336
38	343
39	352
40	354
41	365
42	390
43	394
44	414
45	415
46	420
47	422
48	438
49	440
50	446
51	450
52	455
53	462
54	471
55	474

[1, 11, 12, 20, 33, 34, 35, 36, 52, 64, 75, 79, 84, 94, 95, 102, 104, 110, 112, 121, 138, 163, 167, 170, 174, 184, 192, 200, 217, 231, 235, 246, 250, 255, 256, 321, 336, 343, 352, 354, 365, 390, 394, 414, 415, 420, 422, 438, 440, 446, 450, 455, 462, 471, 474]

cp's OEIS Frontend

A109372 Numbers k such that k * (sum of the digits of k raised to their own power) + 1 is prime.

Table of values

List of values

n	a(n)
1	1
2	11
3	12
4	20
5	33
6	34
7	35
8	36
9	52
10	64
11	75
12	79
13	84
14	94
15	95
16	102
17	104
18	110
19	112
20	121
21	138
22	163
23	167
24	170
25	174
26	184
27	192
28	200
29	217
30	231
31	235
32	246
33	250
34	255
35	256
36	321
37	336
38	343
39	352
40	354
41	365
42	390
43	394
44	414
45	415
46	420
47	422
48	438
49	440
50	446
51	450
52	455
53	462
54	471
55	474

n	a(n)
1	1
2	11
3	12
4	20
5	33
6	34
7	35
8	36
9	52
10	64
11	75
12	79
13	84
14	94
15	95
16	102
17	104
18	110
19	112
20	121
21	138
22	163
23	167
24	170
25	174
26	184
27	192
28	200
29	217
30	231
31	235
32	246
33	250
34	255
35	256
36	321
37	336
38	343
39	352
40	354
41	365
42	390
43	394
44	414
45	415
46	420
47	422
48	438
49	440
50	446
51	450
52	455
53	462
54	471
55	474

n	a(n)
1	1
2	11
3	12
4	20
5	33
6	34
7	35
8	36
9	52
10	64
11	75
12	79
13	84
14	94
15	95
16	102
17	104
18	110
19	112
20	121
21	138
22	163
23	167
24	170
25	174
26	184
27	192
28	200
29	217
30	231
31	235
32	246
33	250
34	255
35	256
36	321
37	336
38	343
39	352
40	354
41	365
42	390
43	394
44	414
45	415
46	420
47	422
48	438
49	440
50	446
51	450
52	455
53	462
54	471
55	474