OFFSET
1,1
COMMENTS
Subsequence of A108419.
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..684 (all 5-digit and 7-digit terms)
Harvey P. Dale, Table of n, a(n) for n = 1..179678 (all 5-digit, 7-digit and 11-digit terms)
MATHEMATICA
Table[With[{c={2, 3, 5, 7}}, Select[FromDigits/@Tuples[c, p], PrimeQ[#]&&Union[IntegerDigits[#]]==c&]], {p, Prime[Range[3, 4]]}]//Flatten (* Harvey P. Dale, Oct 11 2025 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Lekraj Beedassy, Jan 01 2009
EXTENSIONS
List sorted and 2 duplicates removed by Georg Fischer, Mar 20 2022
Clarified definition. - N. J. A. Sloane, Apr 03 2022
STATUS
approved
