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Column 1 of triangle A152391.
4

%I #2 Mar 30 2012 18:37:15

%S 1,2,6,28,150,930,6286,46120,359946,2973650,25766950,233274228,

%T 2195351158,21414166970,215809803270,2242074012816,23959435578514,

%U 262910074728546,2957549692243558,34061536200099020,401102135361004182

%N Column 1 of triangle A152391.

%F a(n) is divisible by (n+1) for n>=0.

%e a(n)/(n+1) = [1,1,2,7,30,155,898,5765,39994,297365,2342450,...].

%Y Cf. A152391; columns: A152392, A152394; A152395.

%K nonn

%O 0,2

%A _Paul D. Hanna_, Dec 11 2008