Keep only the middle digit of each integer and concatenate them. The result is the concatenation of all integers of the sequence.
A106003
Keep only the middle 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) =110a(11) =111a(12) =200a(13) =210a(14) =211a(15) =212a(16) =220a(17) =300a(18) =400a(19) =420a(20) =510a(21) =600a(22) =620a(23) =710a(24) =711a(25) =720a(26) =810a(27) =820a(28) =822a(29) =823
External references
- oeis: A106003