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%I #2 Mar 30 2012 17:34:19
%S 3,5,11,17,79,97,103,109,127,163,193,223,229,277,307,313,349,379,397,
%T 439,457,463,487,499,613,643,677,727,733,751,941,947,971,977,991,1013,
%U 1033,1063,1097,1103,1117,1123,1181,1187,1217,1223,1231,1283,1291,1321
%N a(n) = If[Floor[2*Mod[(Prime[n + 1] - Prime[n])*PrimePi[n]/n, 8]] == 2, Prime[n]].
%t a = Flatten[Table[If[Floor[2*Mod[(Prime[n + 1] - Prime[n])*PrimePi[n]/n, 8]] == 2, Prime[n], {}], {n, 1, 400}]]
%Y Cf. A001359.
%K nonn
%O 0,1
%A _Roger L. Bagula_, Jun 27 2005
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