Position of second appearance of set of first n terms in the sequence of odd primes modulo 4.

A202025

Position of second appearance of set of first n terms in the sequence of odd primes modulo 4.

Terms

    a(0) =3a(1) =4a(2) =8a(3) =16a(4) =16a(5) =19a(6) =60a(7) =221a(8) =654a(9) =654a(10) =654a(11) =654a(12) =654a(13) =30291a(14) =30291a(15) =30291a(16) =30291a(17) =250231a(18) =342916a(19) =342916a(20) =472727a(21) =1934365a(22) =1934365a(23) =11877702a(24) =11877702a(25) =11877702

External references