1 followed by A141015.

Terms

a(0) =1a(1) =0a(2) =1a(3) =2a(4) =4a(5) =9a(6) =19a(7) =41a(8) =88a(9) =189a(10) =406a(11) =872a(12) =1873a(13) =4023a(14) =8641a(15) =18560a(16) =39865a(17) =85626a(18) =183916a(19) =395033a(20) =848491a(21) =1822473a(22) =3914488a(23) =8407925a(24) =18059374a(25) =38789712a(26) =83316385a(27) =178955183a(28) =384377665a(29) =825604416