A007796 List of pairs of primes in reverse order, starting at 1.
21, 53, 117, 1713, 2319, 3129, 4137, 4743, 5953, 6761, 7371, 8379, 9789, 103101, 109107, 127113, 137131, 149139, 157151, 167163, 179173, 191181, 197193, 211199, 227223
Offset: 1
Links
- Harvey P. Dale, Table of n, a(n) for n = 1..1000
Programs
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Mathematica
FromDigits/@(Flatten[IntegerDigits/@Reverse[#]]&/@Partition[Join[{1}, Prime[ Range[2*30]]],2])(* Harvey P. Dale, May 10 2015 *)