Column 5 of array in A265080.

Terms

a(0) =0a(1) =5a(2) =30a(3) =195a(4) =1220a(5) =7145a(6) =40230a(7) =224175a(8) =1241000a(9) =6785325a(10) =36675650a(11) =196823495a(12) =1051855260a(13) =5599171045a(14) =29659801150a(15) =156443274375a(16) =822605274320