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%I #1 Jun 01 2010 03:00:00
%S 1,14,127,958,6601,43698,287507,1929706,13486531,99571340,782211324,
%T 6539607380,57901173453,538952965192,5234230025617,52686138293574,
%U 546666444601661,5821956732601772,63426558436432195,704956833621381378
%N The number of staircase polygons with a staircase hole counted by the outer half-perimeter only.
%C The generating function is the solution to a Fuchsian ODE of order 11.
%K nonn
%O 6,2
%A Iwan Jensen (I.Jensen(AT)ms.unimelb.edu.au), Feb 17 2010