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A086611
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Row sums of triangle of coefficients (A086610) where T(n,k) is the coefficient of x^n*y^k in f(x,y) that satisfies f(x,y) = (1-x-x^2)/(1-x)^2 + xy*f(x,y)^2.
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1
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1, 2, 4, 11, 36, 129, 486, 1892, 7546, 30675, 126642, 529600, 2238782, 9551583, 41075698, 177865921, 774875488, 3393896499, 14936139018, 66014016044, 292892796930, 1304062558529, 5824639004518, 26091657768331
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