G.f. satisfies A(x) = exp( Sum_{k>=1} (-1)^(k+1) * (3 + A(x^k)) * x^k/k ).

A363509

G.f. satisfies A(x) = exp( Sum_{k>=1} (-1)^(k+1) * (3 + A(x^k)) * x^k/k ).

Terms

    a(0) =1a(1) =4a(2) =10a(3) =30a(4) =101a(5) =361a(6) =1354a(7) =5238a(8) =20740a(9) =83683a(10) =342719a(11) =1421019a(12) =5953306a(13) =25162342a(14) =107163924a(15) =459438524a(16) =1981247950a(17) =8588054014a(18) =37398421941a(19) =163534601567a(20) =717776072291

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