Triangle read by rows whose (i,j)-th entry is binomial(i,j)*11^(i-j)*10^j.

Terms

a(0) =1a(1) =11a(2) =10a(3) =121a(4) =220a(5) =100a(6) =1331a(7) =3630a(8) =3300a(9) =1000a(10) =14641a(11) =53240a(12) =72600a(13) =44000a(14) =10000a(15) =161051a(16) =732050a(17) =1331000a(18) =1210000a(19) =550000a(20) =100000a(21) =1771561a(22) =9663060a(23) =21961500a(24) =26620000a(25) =18150000a(26) =6600000a(27) =1000000a(28) =19487171a(29) =124009270