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.
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.
Terms
- a(0) =2a(1) =3a(2) =5a(3) =7a(4) =23a(5) =29a(6) =41a(7) =43a(8) =47a(9) =61a(10) =67a(11) =83a(12) =89a(13) =347a(14) =349a(15) =367a(16) =383a(17) =389a(18) =641a(19) =643a(20) =647a(21) =661a(22) =683a(23) =929a(24) =941a(25) =947a(26) =967a(27) =983a(28) =2341a(29) =2347
External references
- oeis: A069556