a(n) = (prime(n) - 1)^2.

Terms

a(0) =1a(1) =4a(2) =16a(3) =36a(4) =100a(5) =144a(6) =256a(7) =324a(8) =484a(9) =784a(10) =900a(11) =1296a(12) =1600a(13) =1764a(14) =2116a(15) =2704a(16) =3364a(17) =3600a(18) =4356a(19) =4900a(20) =5184a(21) =6084a(22) =6724a(23) =7744a(24) =9216a(25) =10000a(26) =10404a(27) =11236a(28) =11664a(29) =12544