G.f. satisfies A(x) = 1 + x*A(x) / (1 - x^5*A(x)^2).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =2a(7) =5a(8) =11a(9) =21a(10) =36a(11) =58a(12) =94a(13) =163a(14) =306a(15) =599a(16) =1170a(17) =2229a(18) =4140a(19) =7596a(20) =14002a(21) =26228a(22) =49979a(23) =96212a(24) =185491a(25) =356255a(26) =681247a(27) =1300680a(28) =2488500a(29) =4782037