Eighth column of quadrinomial coefficients.

Terms

a(0) =6a(1) =40a(2) =155a(3) =456a(4) =1128a(5) =2472a(6) =4950a(7) =9240a(8) =16302a(9) =27456a(10) =44473a(11) =69680a(12) =106080a(13) =157488a(14) =228684a(15) =325584a(16) =455430a(17) =627000a(18) =850839a(19) =1139512a(20) =1507880a(21) =1973400a(22) =2556450a(23) =3280680a(24) =4173390a(25) =5265936a(26) =6594165a(27) =8198880a(28) =10126336a(29) =12428768