G.f. A(x) satisfies: 0 = Sum_{n=-oo..+oo} (-1)^n * x^(2*n) * (A(x) - x^n)^n * (1 - x^n*A(x))^n.

A363138

G.f. A(x) satisfies: 0 = Sum_{n=-oo..+oo} (-1)^n * x^(2*n) * (A(x) - x^n)^n * (1 - x^n*A(x))^n.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =10a(4) =32a(5) =110a(6) =380a(7) =1452a(8) =5444a(9) =21422a(10) =84348a(11) =339498a(12) =1375168a(13) =5638930a(14) =23273316a(15) =96829410a(16) =405119328a(17) =1704806800a(18) =7207449048a(19) =30607173180a(20) =130475372576a(21) =558195492452

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