Column 6 of array in A226513.

Terms

a(0) =4683a(1) =25988a(2) =87135a(3) =227304a(4) =507035a(5) =1014348a(6) =1871583a(7) =3242960a(8) =5342859a(9) =8444820a(10) =12891263a(11) =19103928a(12) =27595035a(13) =38979164a(14) =53985855a(15) =73472928a(16) =98440523a(17) =130045860a(18) =169618719a(19) =218677640a(20) =278946843a(21) =352373868a(22) =441147935a(23) =547719024a(24) =674817675a(25) =825475508