Expansion of g.f. A(x) satisfying A(x)^2 = A( x^2/(1-2*x)^3 )/(1-2*x).

A375443

Expansion of g.f. A(x) satisfying A(x)^2 = A( x^2/(1-2*x)^3 )/(1-2*x).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =21a(5) =77a(6) =290a(7) =1122a(8) =4462a(9) =18210a(10) =76028a(11) =323524a(12) =1398071a(13) =6115707a(14) =27008516a(15) =120162616a(16) =537702116a(17) =2417043444a(18) =10904533054a(19) =49343555890a(20) =223851302500

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