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a(p+1) = p, p is a prime.
If n is prime and 2n-3 is not prime, then a(n) = 0. - David Wasserman, Jan 27 2005
Table of n, a(n) for n=1..68.
a(10) = 9 + 7 + 3 = 19.
Sequence in context: A045790 A085102 A087572 * A241082 A219789 A034694
Adjacent sequences: A085104 A085105 A085106 * A085108 A085109 A085110
Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jul 04 2003
More terms from David Wasserman, Jan 27 2005