A doubly-fractal simple sequence. Erase the first (leftmost) digit of every integer: what is left is the sequence itself. The erased digits, one by one, form also the sequence itself.
A127303
A doubly-fractal simple sequence. Erase the first (leftmost) digit of every integer: what is left is the sequence itself. The erased digits, one by one, form also the sequence itself.
Terms
- a(0) =1a(1) =2a(2) =11a(3) =12a(4) =111a(5) =212a(6) =1111a(7) =1212a(8) =11111a(9) =21212a(10) =111111a(11) =221212a(12) =1111111a(13) =1221212a(14) =11111111a(15) =11221212a(16) =111111111a(17) =211221212a(18) =1111111111a(19) =2211221212
External references
- oeis: A127303