OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
EXAMPLE
If k=4, then k2357111317 = 42357111317 (prime).
If k=42, then k2357111317 = 422357111317 (prime).
If k=87, then k2357111317 = 872357111317 (prime).
MATHEMATICA
Select[Range[700], PrimeQ[#*10^10+2357111317]&] (* Harvey P. Dale, Jun 09 2018 *)
PROG
(Magma) [ n: n in [1..700] | IsPrime(Seqint([7, 1, 3, 1, 1, 1, 7, 5, 3, 2] cat Intseq(n))) ]; // Vincenzo Librandi, Feb 03 2011
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Parthasarathy Nambi, Mar 23 2005
STATUS
approved