k th digit of a(n) is the number of different digits within 1 of k (not including k).

A039988

k th digit of a(n) is the number of different digits within 1 of k (not including k).

Terms

    a(0) =11a(1) =111a(2) =1111a(3) =1221a(4) =11111a(5) =111111a(6) =1111111a(7) =1221221a(8) =11111111a(9) =111111111a(10) =1111111111a(11) =1221221221a(12) =11111111111a(13) =111111111111

External references