Third right hand column of triangle A163934.

Terms

a(0) =35a(1) =340a(2) =1750a(3) =6440a(4) =19110a(5) =48720a(6) =110880a(7) =231000a(8) =448305a(9) =820820a(10) =1431430a(11) =2395120a(12) =3867500a(13) =6054720a(14) =9224880a(15) =13721040a(16) =19975935a(17) =28528500a(18) =40042310a(19) =55326040a(20) =75356050a(21) =101301200a(22) =134550000a(23) =176740200a(24) =229790925a(25) =295937460a(26) =377768790a(27) =478268000a(28) =600855640a(29) =749436160