A069556 - cp's OEIS frontend

A069556 Primes in which the k-th digit (counting from the right) is either a nonzero multiple of k or a divisor of k; furthermore the digit 1 is allowed only when k has no other divisors < 10.

n	a(n)
1	2
2	3
3	5
4	7
5	23
6	29
7	41
8	43
9	47
10	61
11	67
12	83
13	89
14	347
15	349
16	367
17	383
18	389
19	641
20	643
21	647
22	661
23	683
24	929
25	941
26	947
27	967
28	983
29	2341
30	2347
31	2381
32	2383
33	2389
34	2621
35	2647
36	2663
37	2683
38	2687
39	2689
40	2927
41	2963
42	2969
43	4327
44	4349
45	4363
46	4621
47	4643
48	4649
49	4663
50	4943

[2, 3, 5, 7, 23, 29, 41, 43, 47, 61, 67, 83, 89, 347, 349, 367, 383, 389, 641, 643, 647, 661, 683, 929, 941, 947, 967, 983, 2341, 2347, 2381, 2383, 2389, 2621, 2647, 2663, 2683, 2687, 2689, 2927, 2963, 2969, 4327, 4349, 4363, 4621, 4643, 4649, 4663, 4943]

cp's OEIS Frontend

A069556 Primes in which the k-th digit (counting from the right) is either a nonzero multiple of k or a divisor of k; furthermore the digit 1 is allowed only when k has no other divisors < 10.

Table of values

List of values