%I

%S 1,1,2,2,3,4,5,6,8,10,13,17,22,27,35,44,57,72,91,116,148,188,239,305,

%T 387,493,627,797,1014,1290,1641,2087,2655,3377,4296,5464,6951,8842,

%U 11247,14306,18198,23148,29445,37454,47642

%N Let R(i,j) be the rectangle with antidiagonals 1; 2,3; 4,5,6; ...; the n-th Fibonacci number is in antidiagonal a(n).

%K nonn

%O 1,3

%A _Clark Kimberling_, Jul 30 2000