OFFSET
1,1
COMMENTS
The 2 may not be the least significant digit. However, it could be argued that 2 and 3 belong in this sequence; the former would be the only case in which 2 can be the least significant digit of a term in the sequence. (From Alonso del Arte Dec 15 2009)
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..181 (* All terms with not more than 100 digits. *)
MATHEMATICA
A168438 = Select[Union[Flatten[Table[FromDigits[Flatten[{Table[3, {j - 1}], 2, Table[3, {i - j}]}]], {i, 2, 25}, {j, 1, i}]]], PrimeQ]
Select[Flatten[Table[FromDigits/@Permutations[PadRight[{2}, n, 3]], {n, 2, 21}]], PrimeQ] (* Harvey P. Dale, Aug 27 2024 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Lekraj Beedassy, Nov 25 2009
EXTENSIONS
a(1 to 20) verified and a(21 to 39) added by Alonso del Arte Dec 15 2009
Definition clarified by Harvey P. Dale, Aug 27 2024
STATUS
approved