A191221 - cp's OEIS frontend

A191221 Numbers k such that k plus the sum of the digits of k is prime, and R(k) plus the sum of the digits of k is prime, where R(k) = A004086(k).

n	a(n)
1	1
2	10
3	11
4	19
5	35
6	37
7	53
8	59
9	73
10	91
11	95
12	100
13	101
14	143
15	181
16	218
17	232
18	250
19	272
20	296
21	298
22	323
23	341
24	343
25	365
26	383
27	385
28	418
29	436
30	454
31	490
32	509
33	527
34	547
35	563
36	583
37	610
38	634
39	650
40	656
41	670
42	692
43	725
44	727
45	745
46	749
47	767
48	787
49	812
50	814
51	838
52	850
53	892
54	905
55	947
56	949
57	1009

[1, 10, 11, 19, 35, 37, 53, 59, 73, 91, 95, 100, 101, 143, 181, 218, 232, 250, 272, 296, 298, 323, 341, 343, 365, 383, 385, 418, 436, 454, 490, 509, 527, 547, 563, 583, 610, 634, 650, 656, 670, 692, 725, 727, 745, 749, 767, 787, 812, 814, 838, 850, 892, 905, 947, 949, 1009]

cp's OEIS Frontend

A191221 Numbers k such that k plus the sum of the digits of k is prime, and R(k) plus the sum of the digits of k is prime, where R(k) = A004086(k).

Table of values

List of values