n-th 6k+1 prime times n-th 6k-1 prime.

Terms

a(0) =35a(1) =143a(2) =323a(3) =713a(4) =1073a(5) =1763a(6) =2867a(7) =3551a(8) =4307a(9) =5609a(10) =8051a(11) =9167a(12) =11009a(13) =13589a(14) =15707a(15) =19781a(16) =21509a(17) =24287a(18) =30227a(19) =33389a(20) =35621a(21) =40301a(22) =43931a(23) =51983a(24) =56153a(25) =64769a(26) =69527a(27) =72731a(28) =80741a(29) =84197