Expansion of (1 - 3*x - sqrt((1-3*x)^2 - 4*3*x^2))/(2*3*x^2).

A107264

Expansion of (1 - 3*x - sqrt((1-3*x)^2 - 4*3*x^2))/(2*3*x^2).

Terms

    a(0) =1a(1) =3a(2) =12a(3) =54a(4) =261a(5) =1323a(6) =6939a(7) =37341a(8) =205011a(9) =1143801a(10) =6466230a(11) =36960300a(12) =213243435a(13) =1240219269a(14) =7263473148a(15) =42799541886a(16) =253556163243

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