Constant term in the reduction by (x^2 -> x + 1) of the polynomial C(n)*x^n, where C=A000285.

Terms

a(0) =1a(1) =0a(2) =5a(3) =9a(4) =28a(5) =69a(6) =185a(7) =480a(8) =1261a(9) =3297a(10) =8636a(11) =22605a(12) =59185a(13) =154944a(14) =405653a(15) =1062009a(16) =2780380a(17) =7279125a(18) =19057001a(19) =49891872a(20) =130618621a(21) =341963985a(22) =895273340a(23) =2343856029a(24) =6136294753a(25) =16065028224a(26) =42058789925a(27) =110111341545a(28) =288275234716a(29) =754714362597