p^2-p+1 central polygonal numbers with prime indices A002061(prime(n)).

Terms

a(0) =3a(1) =7a(2) =21a(3) =43a(4) =111a(5) =157a(6) =273a(7) =343a(8) =507a(9) =813a(10) =931a(11) =1333a(12) =1641a(13) =1807a(14) =2163a(15) =2757a(16) =3423a(17) =3661a(18) =4423a(19) =4971a(20) =5257a(21) =6163a(22) =6807a(23) =7833a(24) =9313a(25) =10101a(26) =10507a(27) =11343a(28) =11773a(29) =12657