Natural numbers written out and then regrouped into the smallest possible nontrivial blocks such that each begins and ends with the same digit. (Leading zeros omitted and not counted as beginning digit).
A091416
Natural numbers written out and then regrouped into the smallest possible nontrivial blocks such that each begins and ends with the same digit. (Leading zeros omitted and not counted as beginning digit).
Terms
- a(0) =1234567891a(1) =11a(2) =121a(4) =242a(6) =363a(8) =484a(10) =606a(12) =727a(14) =848a(16) =969a(18) =1081
External references
- oeis: A091416