Keep only the first digit of each integer and concatenate them. The result is the concatenation of all integers of the sequence.

A106000

Keep only the first digit of each integer and concatenate them. The result is the concatenation of all integers of the sequence.

Terms

    a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =9a(10) =11a(11) =12a(12) =111a(13) =211a(14) =1111a(15) =1112a(16) =1113a(17) =2111a(18) =11111a(19) =11112a(20) =11113a(21) =11114a(22) =11115a(23) =11116a(24) =11117a(25) =11118a(26) =11119a(27) =21111a(28) =111111a(29) =111112

External references