OFFSET
1,1
COMMENTS
Sequence is finite since it is a subsequence of a finite sequence (A071062).
This is complete: there are only 14 terms in the sequence.
EXAMPLE
449 is in this sequence because it's prime and none of the numbers 4, 9, 44, 49, 94, 494 and 944 is prime.
MATHEMATICA
Select[Prime@ Range[10^3], NoneTrue[DeleteCases[FromDigits /@ Rest@ Union@ Apply[Join, Permutations /@ Subsets@ IntegerDigits@ #], #], PrimeQ] &] (* Michael De Vlieger, Oct 22 2018 *)
CROSSREFS
KEYWORD
nonn,base,fini,full
AUTHOR
Daniel Lignon, Oct 19 2018
STATUS
approved