G.f. satisfies: A(x) = 1/(1 + x*A(x^3)) and also the continued fraction: 1+x*A(x^4) = [1;1/x,1/x^3,1/x^9,1/x^27,...,1/x^(3^(n-1)),...].
A101913
G.f. satisfies: A(x) = 1/(1 + x*A(x^3)) and also the continued fraction: 1+x*A(x^4) = [1;1/x,1/x^3,1/x^9,1/x^27,...,1/x^(3^(n-1)),...].
Terms
- a(0) =1a(1) =-1a(2) =1a(3) =-1a(4) =2a(5) =-3a(6) =4a(7) =-6a(8) =9a(9) =-13a(10) =19a(11) =-28a(12) =41a(13) =-61a(14) =90a(15) =-132a(16) =195a(17) =-288a(18) =424a(19) =-625a(20) =922a(21) =-1359a(22) =2004a(23) =-2955a(24) =4356a(25) =-6423a(26) =9471a(27) =-13963a(28) =20587a(29) =-30355
External references
- oeis: A101913