Number of (n+1)X(2+1) 0..2 arrays with each row nonprime and column prime, read as a base 3 number with top and left being the most significant digits.
A262107
Number of (n+1)X(2+1) 0..2 arrays with each row nonprime and column prime, read as a base 3 number with top and left being the most significant digits.
Terms
- a(0) =26a(1) =195a(2) =1968a(3) =18933a(4) =186780a(5) =2019171a(6) =23371442
External references
- oeis: A262107