Column 3 of triangle A200171.

Terms

a(0) =1a(1) =11a(2) =-54a(3) =302a(4) =-1483a(5) =7009a(6) =-32030a(7) =143210a(8) =-629848a(9) =2735812a(10) =-11767534a(11) =50220042a(12) =-212952283a(13) =898198877a(14) =-3771484798a(15) =15775723922a(16) =-65770848988a(17) =273420862112