Binomial transform of A084265.

Terms

a(0) =1a(1) =3a(2) =11a(3) =34a(4) =96a(5) =256a(6) =656a(7) =1632a(8) =3968a(9) =9472a(10) =22272a(11) =51712a(12) =118784a(13) =270336a(14) =610304a(15) =1368064a(16) =3047424a(17) =6750208a(18) =14876672a(19) =32636928a(20) =71303168a(21) =155189248a(22) =336592896a(23) =727711744a(24) =1568669696a(25) =3372220416a(26) =7230980096a(27) =15468593152a(28) =33017561088