T(n,k)=Number of nXk 0..2 arrays with every element plus 1 mod 3 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0), with upper left element zero.
A278006
T(n,k)=Number of nXk 0..2 arrays with every element plus 1 mod 3 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0), with upper left element zero.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =9a(5) =0a(6) =0a(7) =52a(8) =52a(9) =0a(10) =0a(11) =364a(12) =866a(13) =364a(14) =0a(15) =0a(16) =2523a(17) =16583a(18) =16583a(19) =2523a(20) =0a(21) =0a(22) =17424a(23) =316432a(24) =912870a(25) =316432a(26) =17424a(27) =0a(28) =0a(29) =120462
External references
- oeis: A278006