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A090311
Concatenation of two distinct primes p and q, p < q.
2
23, 25, 35, 27, 37, 57, 211, 311, 511, 711, 213, 313, 513, 713, 1113, 217, 317, 517, 717, 1117, 1317, 219, 319, 519, 719, 1119, 1319, 1719
OFFSET
1,1
COMMENTS
Next n numbers end in prime(n+1).
LINKS
MATHEMATICA
FromDigits[Flatten[IntegerDigits/@#]]&/@Flatten[Table[Join[{Prime[c]}, {Prime[ n]}], {n, 10}, {c, n-1}], 1](* Harvey P. Dale, Nov 27 2019 *)
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
Amarnath Murthy, Nov 30 2003
STATUS
approved