T(n,k)=Number of (n+3)X(k+3) 0..1 arrays with each row and column divisible by 15, read as a binary number with top and left being the most significant bits.
A262457
T(n,k)=Number of (n+3)X(k+3) 0..1 arrays with each row and column divisible by 15, read as a binary number with top and left being the most significant bits.
Terms
- a(0) =2a(1) =3a(2) =3a(3) =5a(4) =5a(5) =5a(6) =9a(7) =9a(8) =9a(9) =9a(10) =18a(11) =17a(12) =17a(13) =17a(14) =18a(15) =35a(16) =51a(17) =33a(18) =33a(19) =51a(20) =35a(21) =69a(22) =117a(23) =389a(24) =65a(25) =389a(26) =117a(27) =69a(28) =137a(29) =281
External references
- oeis: A262457