Semiprimes of the form (2*n^3+n)/3.

Terms

a(0) =6a(1) =85a(2) =146a(3) =489a(4) =1469a(5) =3281a(6) =4579a(7) =6181a(8) =8119a(9) =19871a(10) =23969a(11) =99269a(12) =238631a(13) =439031a(14) =470009a(15) =536269a(16) =961969a(17) =1240619a(18) =1365631a(19) =2579981a(20) =2887219a(21) =3105031a(22) =3696881a(23) =3953221a(24) =5096981a(25) =5413801a(26) =7002379a(27) =8006069a(28) =8874781a(29) =22050881