Primes 2 less than a tetrahedral number.

Terms

a(0) =2a(1) =163a(2) =967a(3) =4493a(4) =9137a(5) =32507a(6) =39709a(7) =47903a(8) =67523a(9) =176849a(10) =221813a(11) =708559a(12) =1543463a(13) =1726667a(14) =2481113a(15) =2997409a(16) =3428423a(17) =3737579a(18) =4410547a(19) =4775383a(20) =5774273a(21) =6209893a(22) =6903563a(23) =9001627a(24) =9585343a(25) =10507397a(26) =11153833a(27) =15596033