G.f. satisfies: A(x) = exp( Sum_{n>=1} x^n/n * Product_{k>=1} (1 + x^(n*k)*A(x^n)^k) ).

A219232

G.f. satisfies: A(x) = exp( Sum_{n>=1} x^n/n * Product_{k>=1} (1 + x^(n*k)*A(x^n)^k) ).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =4a(4) =11a(5) =30a(6) =92a(7) =284a(8) =918a(9) =3005a(10) =10043a(11) =33943a(12) =116138a(13) =400862a(14) =1395228a(15) =4889389a(16) =17240482a(17) =61117789a(18) =217709832a(19) =778841527a(20) =2797066886a(21) =10080379573a(22) =36444817306a(23) =132147553180a(24) =480444008087

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