Binomial transform of A127358.

Terms

a(0) =1a(1) =4a(2) =15a(3) =55a(4) =199a(5) =714a(6) =2547a(7) =9048a(8) =32043a(9) =113212a(10) =399265a(11) =1406079a(12) =4946137a(13) =17383162a(14) =61048359a(15) =214270215a(16) =751691811a(17) =2636004228a(18) =9240836733a(19) =32386215981a(20) =113478349989a(21) =397544907486