%I A136731
%S A136731 1,2,5,23,175,1935,28432,523290,11587072,299942890,8886126540,
%T A136731 296438370794,10993731095695,448604373236731,19971257117211555,
%U A136731 963142501803505255,50015707804752012825,2782336529985704607295
%N A136731 Column 1 of square array A136730.
%Y A136731 Cf. A136730; A101482, A136732.
%Y A136731 Sequence in context: A032182 A165902 A167142 this_sequence A062495 A158889 
               A078125
%Y A136731 Adjacent sequences: A136728 A136729 A136730 this_sequence A136732 A136733 
               A136734
%K A136731 nonn
%O A136731 0,2
%A A136731 Paul D. Hanna (pauldhanna(AT)juno.com), Jan 19 2008