Column 4 of triangle A200171.

Terms

a(0) =1a(1) =16a(2) =-118a(3) =827a(4) =-5003a(5) =28030a(6) =-148510a(7) =755822a(8) =-3730648a(9) =17978182a(10) =-84987758a(11) =395482817a(12) =-1816357723a(13) =8250123002a(14) =-37119350398a(15) =165645101162a(16) =-733919156188