T(n,k) = Number of (n+1) X (k+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.
A262109
T(n,k) = Number of (n+1) X (k+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) =7a(1) =26a(2) =17a(3) =130a(4) =195a(5) =54a(6) =617a(7) =2426a(8) =1968a(9) =171a(10) =2668a(11) =27414a(12) =61256a(13) =18933a(14) =554a(15) =11479a(16) =286164a(17) =1845169a(18) =1518344a(19) =186780a(20) =1926a(21) =47947a(22) =2924668a(23) =50756609a(24) =118115088a(25) =38154616a(26) =2019171a(27) =6976a(28) =201431a(29) =27440631
External references
- oeis: A262109