Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*7^j.

Terms

a(0) =1a(1) =10a(2) =7a(3) =100a(4) =140a(5) =49a(6) =1000a(7) =2100a(8) =1470a(9) =343a(10) =10000a(11) =28000a(12) =29400a(13) =13720a(14) =2401a(15) =100000a(16) =350000a(17) =490000a(18) =343000a(19) =120050a(20) =16807a(21) =1000000a(22) =4200000a(23) =7350000a(24) =6860000a(25) =3601500a(26) =1008420a(27) =117649a(28) =10000000a(29) =49000000