A112784 Beginning with 2, primes of the form: least multiple of the previous term followed by a 9. Beginning with 2, a(n) is the least prime of the form k*a(n-1)*10 + 9.

2, 29, 1459, 58369, 2334769, 233476909, 11673845459, 233476909189, 30351998194579, 1214079927783169, 24281598555663389, 1214079927783169459, 48563197111326778369, 11169535335605159024879

Offset

1,1

Links

Michael De Vlieger, Table of n, a(n) for n = 1..300

Mathematica

NestList[Block[{k = 1, m}, While[! PrimeQ[Set[m, 10 k # + 9]], k++]; m] &, 2, 13] (* Michael De Vlieger, Nov 14 2021 *)

Crossrefs

Cf. A112782, A112783.

Sequence in context: A367551 A077282 A059725 * A252042 A295426 A055559

Adjacent sequences: A112781 A112782 A112783 * A112785 A112786 A112787

Keyword

base,nonn

Author

Amarnath Murthy, Jan 02 2006

Extensions

Corrected and extended by Joshua Zucker, Jan 11 2006

Status

approved