Number of strings of numbers x(i=1..11) in 0..n with sum i*x(i) equal to n*11.

Terms

a(0) =12a(1) =215a(2) =1901a(3) =11071a(4) =48701a(5) =175410a(6) =543050a(7) =1493647a(8) =3734127a(9) =8629470a(10) =18668476a(11) =38179126a(12) =74385462a(13) =138932619a(14) =250023457a(15) =435361212a(16) =736109581a(17) =1212153012a(18) =1948954846a(19) =3066408954a(20) =4730088166a(21) =7165425434a(22) =10675359121a(23) =15662148169