Expansion of the o.g.f. (1 + 8*x + 10*x^2 + 8*x^3 + x^4)/((1 - x)^4*(1 + x)^2).

Terms

a(0) =1a(1) =10a(2) =31a(3) =76a(4) =145a(5) =254a(6) =399a(7) =600a(8) =849a(9) =1170a(10) =1551a(11) =2020a(12) =2561a(13) =3206a(14) =3935a(15) =4784a(16) =5729a(17) =6810a(18) =7999a(19) =9340a(20) =10801a(21) =12430a(22) =14191a(23) =16136a(24) =18225a(25) =20514a(26) =22959a(27) =25620a(28) =28449a(29) =31510