Binomial transform of A113127; (1, 1, 3, 7, 15, 31, ...) convolved with (1, 3, 7, 15, 31, 63, ...).

Terms

a(0) =1a(1) =4a(2) =13a(3) =38a(4) =103a(5) =264a(6) =649a(7) =1546a(8) =3595a(9) =8204a(10) =18445a(11) =40974a(12) =90127a(13) =196624a(14) =426001a(15) =917522a(16) =1966099a(17) =4194324a(18) =8912917a(19) =18874390a(20) =39845911a(21) =83886104a(22) =176160793a(23) =369098778a(24) =771751963a(25) =1610612764a(26) =3355443229a(27) =6979321886a(28) =14495514655a(29) =30064771104