Sixth column (m=5) of (1,4)-Pascal triangle A095666.

Terms

a(0) =4a(1) =21a(2) =66a(3) =161a(4) =336a(5) =630a(6) =1092a(7) =1782a(8) =2772a(9) =4147a(10) =6006a(11) =8463a(12) =11648a(13) =15708a(14) =20808a(15) =27132a(16) =34884a(17) =44289a(18) =55594a(19) =69069a(20) =85008a(21) =103730a(22) =125580a(23) =150930a(24) =180180a(25) =213759a(26) =252126a(27) =295771a(28) =345216a(29) =401016