A185719 Final prime of the first member of A019518 that is divisible by 43^n.

211, 4051, 398261, 35912593, 5355284791

Offset: 1

Author

James G. Merickel, Feb 05 2011

Keywords

• nonn
• base
• more

Examples

			The number 2357...199211 is the first term in A019518 divisible by 43^1, therefore a(1) = 211.
		

Crossrefs

Cf. A019518, A183194-A183196, A185656.

Programs

PARI

a(n,m=43)={ my(s=10,p=2); n=Mod(0,m^n); while(n=n*s+p,(p=nextprime(p+1))>s & s*=10) ;p}  \\ M. F. Hasler, Feb 08 2011

Formula

a(n) = Min_{ prime(k) | A019518(k) = 0 (mod 43^n) }. - M. F. Hasler, Feb 08 2011