Number of length n 1..(4+2) arrays with no leading or trailing partial sum equal to a prime.

A254200

Number of length n 1..(4+2) arrays with no leading or trailing partial sum equal to a prime.

Terms

    a(0) =3a(1) =4a(2) =17a(3) =54a(4) =176a(5) =610a(6) =2197a(7) =8358a(8) =34005a(9) =132483a(10) =481155a(11) =1740425a(12) =6687987a(13) =27786351a(14) =119771265a(15) =505378180a(16) =2029295253a(17) =7853415177a(18) =30644058184a(19) =126228069143a(20) =551346605310

External references