%I #6 Mar 31 2024 15:36:54
%S 1,1,1,0,1,1,0,0,3,1,0,0,0,5,1,0,0,0,0,11,1,0,0,0,0,0,21,1,0,0,0,0,0,
%T 0,43,1,0,0,0,0,0,0,0,85,1,0,0,0,0,0,0,0,0,171,1,0,0,0,0,0,0,0,0,0,
%U 341,1
%N Inverse of number triangle A128210.
%C Subdiagonal is A001045(n+1). Row sums are A128209.
%e Triangle begins:
%e 1;
%e 1, 1;
%e 0, 1, 1;
%e 0, 0, 3, 1;
%e 0, 0, 0, 5, 1;
%e 0, 0, 0, 0, 11, 1;
%e 0, 0, 0, 0, 0, 21, 1;
%e 0, 0, 0, 0, 0, 0, 43, 1;
%e 0, 0, 0, 0, 0, 0, 0, 85, 1;
%e 0, 0, 0, 0, 0, 0, 0, 0, 171, 1;
%e 0, 0, 0, 0, 0, 0, 0, 0, 0, 341, 1;
%e ...
%K nonn,tabl
%O 0,9
%A _Paul Barry_, Feb 19 2007