Fourth column (m=3) of (1,6)-Pascal triangle A096956.

Terms

a(0) =6a(1) =19a(2) =40a(3) =70a(4) =110a(5) =161a(6) =224a(7) =300a(8) =390a(9) =495a(10) =616a(11) =754a(12) =910a(13) =1085a(14) =1280a(15) =1496a(16) =1734a(17) =1995a(18) =2280a(19) =2590a(20) =2926a(21) =3289a(22) =3680a(23) =4100a(24) =4550a(25) =5031a(26) =5544a(27) =6090a(28) =6670a(29) =7285