G.f. A(x) satisfies: 1 = Sum_{n>=0} x^n*A(-x)^A003059(n+1), where A003059 is defined by "n appears 2n-1 times.".

A193050

G.f. A(x) satisfies: 1 = Sum_{n>=0} x^n*A(-x)^A003059(n+1), where A003059 is defined by "n appears 2n-1 times.".

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =8a(6) =17a(7) =38a(8) =87a(9) =204a(10) =489a(11) =1191a(12) =2938a(13) =7328a(14) =18448a(15) =46809a(16) =119583a(17) =307324a(18) =793965a(19) =2060770a(20) =5371156a(21) =14051901a(22) =36887289a(23) =97131351a(24) =256488187a(25) =679046184a(26) =1802047427a(27) =4792800096a(28) =12773166908a(29) =34106055493

External references