Sums of 7 distinct powers of 10.

Terms

a(0) =1111111a(1) =10111111a(2) =11011111a(3) =11101111a(4) =11110111a(5) =11111011a(6) =11111101a(7) =11111110a(8) =100111111a(9) =101011111a(10) =101101111a(11) =101110111a(12) =101111011a(13) =101111101a(14) =101111110a(15) =110011111a(16) =110101111a(17) =110110111a(18) =110111011a(19) =110111101a(20) =110111110a(21) =111001111a(22) =111010111a(23) =111011011a(24) =111011101