A087390 a(1) = 7; a(n+1) is the least prime formed by adding one or more digits to the digit reversal of a(n).

7, 71, 173, 3719, 91733, 3371947, 749173303, 3033719477, 774917330303, 30303371947759, 957749173303031, 13030337194775911, 1195774917330303119, 9113030337194775911093, 390119577491733030311941

Offset: 1

Author

Amarnath Murthy, Sep 09 2003

Keywords

• base
• nonn

Examples

			a(2) = 71, a(3) is the smallest prime beginning with 17 and is 173.
		

Crossrefs

Cf. A087388, A087389, A087391.

Extensions

More terms from David Wasserman, May 25 2005