OFFSET
1,1
COMMENTS
The last term is a(1251724) = 10123457689. - Jinyuan Wang, Aug 14 2020
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Reverse[Sort[FromDigits[Join[{9, 8, 7, 6}, #]]&/@Permutations[{5, 4, 3, 2, 1, 0, 1}]]], PrimeQ] (* The program generates the first 150 terms of the sequence *) (* Harvey P. Dale, May 05 2016 *)
CROSSREFS
KEYWORD
nonn,base,fini
AUTHOR
Lekraj Beedassy, Apr 13 2009
EXTENSIONS
Corrected and extended by Ray Chandler, Apr 16 2009
STATUS
approved