Binomial transform(2) of Motzkin numbers.

Terms

a(0) =1a(1) =3a(2) =11a(3) =42a(4) =164a(5) =649a(6) =2592a(7) =10423a(8) =42140a(9) =171133a(10) =697641a(11) =2853587a(12) =11707542a(13) =48166629a(14) =198677283a(15) =821495226a(16) =3404577572a(17) =14140959469a(18) =58859315929a(19) =245493952745