Binomial transform of A212831(n).

Terms

a(0) =0a(1) =1a(2) =4a(3) =12a(4) =30a(5) =70a(6) =160a(7) =364a(8) =824a(9) =1848a(10) =4096a(11) =8976a(12) =19488a(13) =42016a(14) =90112a(15) =192448a(16) =409472a(17) =868224a(18) =1835008a(19) =3866880a(20) =8126976a(21) =17039872a(22) =35651584a(23) =74447872a(24) =155187200a(25) =322959360a(26) =671088640a(27) =1392513024a(28) =2885689344a(29) =5972697088