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A116036
n+p(n)+p(p(n)) is a prime, where p(n) denotes the n-th prime.
0
3, 5, 7, 13, 17, 21, 25, 41, 49, 55, 65, 73, 79, 91, 93, 95, 97, 101, 107, 113, 127, 129, 137, 149, 157, 159, 163, 167, 179, 183, 187, 191, 203, 205, 213, 221, 227, 253, 267, 271, 287, 307, 313, 323, 331, 333, 337, 349, 365, 369, 373, 377, 387, 389, 421, 429
OFFSET
1,1
EXAMPLE
7+p(7)+p(p(7)) = 83 (prime).
CROSSREFS
Cf. A115996.
Sequence in context: A346645 A107360 A058341 * A304122 A032397 A028879
KEYWORD
nonn
AUTHOR
Giovanni Resta, Feb 13 2006
STATUS
approved