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

A254535

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

Terms

    a(0) =3a(1) =10a(2) =40a(3) =160a(4) =670a(5) =3001a(6) =13503a(7) =60408a(8) =270370a(9) =1192385a(10) =5221700a(11) =23404787a(12) =108379668a(13) =507618711a(14) =2353392292a(15) =10735523052a(16) =48337299889a(17) =216062343583a(18) =966793284879

External references