a(n) is the Pisano period of prime(n)^2.

Terms

a(0) =6a(1) =24a(2) =100a(3) =112a(4) =110a(5) =364a(6) =612a(7) =342a(8) =1104a(9) =406a(10) =930a(11) =2812a(12) =1640a(13) =3784a(14) =1504a(15) =5724a(16) =3422a(17) =3660a(18) =9112a(19) =4970a(20) =10804a(21) =6162a(22) =13944a(23) =3916a(24) =19012a(25) =5050a(26) =21424a(27) =7704a(28) =11772a(29) =8588