Let (p1,p2), (p3,p4) be pairs of twin primes with p1*p2=p3+p4-1; sequence gives values of p1.

Terms

a(0) =5a(1) =11a(2) =41a(3) =71a(4) =599a(5) =641a(6) =881a(7) =2129a(8) =2381a(9) =2687a(10) =3557a(11) =3581a(12) =4547a(13) =6131a(14) =7547a(15) =8009a(16) =9041a(17) =13397a(18) =13931a(19) =15971a(20) =17597a(21) =19139a(22) =21491a(23) =26249a(24) =26261a(25) =34511a(26) =38669a(27) =39227a(28) =39341a(29) =48311