Primes (p*(p+2)-2)/3 for p in A339503.

Terms

a(0) =11a(1) =47a(2) =107a(3) =587a(4) =3467a(5) =7499a(6) =10799a(7) =17327a(8) =62207a(9) =71147a(10) =137387a(11) =225227a(12) =355007a(13) =442367a(14) =504299a(15) =554699a(16) =874799a(17) =961067a(18) =1175627a(19) =1486847a(20) =1512299a(21) =1529387a(22) =2617067a(23) =2999999a(24) =3525167a(25) =3538187a(26) =3629999a(27) =4009007a(28) =4148927a(29) =4494527