Column 11 of array illustrated in A089574 and related to A034261.

Terms

a(0) =27a(1) =482a(2) =3855a(3) =20329a(4) =82346a(5) =277295a(6) =813738a(7) =2145712a(8) =5192450a(9) =11708366a(10) =24881487a(11) =50269005a(12) =97217758a(13) =180966915a(14) =325691821a(15) =568823951a(16) =967074547a(17) =1604701323a(18) =2604691419a(19) =4143692621a(20) =6471712062a(21) =9937820779a(22) =15023357512a(23) =22384420182a(24) =32905773076a(25) =47768686720