Number of length n 1..(5+2) arrays with no leading or trailing partial sum equal to a prime.

A254201

Number of length n 1..(5+2) arrays with no leading or trailing partial sum equal to a prime.

Terms

    a(0) =3a(1) =4a(2) =18a(3) =59a(4) =204a(5) =769a(6) =3098a(7) =14080a(8) =63868a(9) =261240a(10) =1030917a(11) =4350280a(12) =20376408a(13) =100217091a(14) =480075932a(15) =2180836235a(16) =9678232728a(17) =44364200452a(18) =215530397762

External references