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A162706
Numbers that are the sum of two reversed primes.
3
4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81
OFFSET
1,1
FORMULA
a(n) = A004087(j)+A004087(k) for any pair (j,k). - R. J. Mathar, Jul 13 2009
CROSSREFS
Sequence in context: A039128 A214421 A294237 * A088331 A239433 A014091
KEYWORD
nonn,base,less
AUTHOR
Claudio Meller, Jul 11 2009
EXTENSIONS
Edited, entries checked by R. J. Mathar, Jul 13 2009
STATUS
approved