Numerator of (prime(n)+1)*(prime(n+1)+1)/(4*(prime(n)*prime(n+1)+1)).

Terms

a(0) =3a(1) =3a(2) =1a(3) =4a(4) =7a(5) =21a(6) =5a(7) =20a(8) =45a(9) =4a(10) =76a(11) =133a(12) =11a(13) =88a(14) =162a(15) =405a(16) =31a(17) =527a(18) =204a(19) =37a(20) =185a(21) =280a(22) =945a(23) =735a(24) =833a(25) =13a(26) =468a(27) =55a(28) =1045a(29) =76