A095970 - OEIS

%I #2 Mar 31 2012 14:11:24

%S 4,25,27,147,149,151,247,1037,1276,1828,1830,1866,1868,2198,3021,4012,

%T 4558,5543,6879,7381,10805,12701,17461,18136,18202,18814,18816,19121,

%U 19448,20033,20035,20562,20887,21051,22491,26397,26399,27139,30837

%N If p(k) is the k-th prime, then the n-th set of 3 consecutive cousin prime pairs starts at p(a(n)).

%e a(7)=247: p(247)=1567 and p(248)=1571, the first cousin prime pair; p(249)=1579 and p(250)=1583, the second cousin prime pair; p(251)=1597 and p(252)=1601, the third cousin prime pair.

%K nonn

%O 1,1

%A _Ray G. Opao_, Jul 15 2004