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p(k) such that 2*p(k)+3 and 2*p(k+1) + 3 are consecutive primes, where p(i) denotes the i-th prime.
4

%I #7 Aug 04 2021 07:43:39

%S 5,17,43,137,193,197,223,227,349,379,463,1033,1109,1303,1427,1559,

%T 1607,1609,3163,3613,3767,3823,4289,4337,4637,4969,5657,5839,6199,

%U 6709,6733,7823,8363,8699,8747,8863,9127,9643,9743,9967,10253,10459,10979,11593

%N p(k) such that 2*p(k)+3 and 2*p(k+1) + 3 are consecutive primes, where p(i) denotes the i-th prime.

%F a(n) = A000040(A089526(n)).

%e p(3)=5, 2*5 + 3 = 13 = p(6);

%e p(4)=7, 2*7 + 3 = 17 = p(7).

%Y Subsequence of A023204.

%Y Cf. A089526, A089528, A089529.

%K nonn

%O 1,1

%A _Ray Chandler_, Nov 07 2003

%E Offset changed to 1 by _Jinyuan Wang_, Aug 04 2021