Inverse Euler transform of A156305.

Terms

a(0) =1a(1) =4a(2) =13a(3) =59a(4) =151a(5) =916a(6) =1961a(7) =12035a(8) =35110a(9) =166204a(10) =384781a(11) =3154367a(12) =5600323a(13) =34384676a(14) =124093963a(15) =582290595a(16) =1235438587a(17) =9831378712a(18) =18602770421a(19) =144738772109a(20) =410101237013