G.f. A(x) satisfies A(x) = 1/sqrt( (1 - 2*x) * (1 - 2*x*A(x)) ).

A379329

G.f. A(x) satisfies A(x) = 1/sqrt( (1 - 2*x) * (1 - 2*x*A(x)) ).

Terms

    a(0) =1a(1) =2a(2) =6a(3) =22a(4) =92a(5) =420a(6) =2034a(7) =10262a(8) =53330a(9) =283410a(10) =1532698a(11) =8406698a(12) =46650072a(13) =261416000a(14) =1477208374a(15) =8407900890a(16) =48158339716a(17) =277375020772

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