Numbers k such that k divides the (left) concatenation of all numbers <= k written in base 3 (most significant digit on right and removing all least significant zeros before concatenation).

A029520

Numbers k such that k divides the (left) concatenation of all numbers <= k written in base 3 (most significant digit on right and removing all least significant zeros before concatenation).

Terms

    a(0) =1a(1) =4a(2) =5a(3) =7a(4) =19a(5) =443a(6) =19952a(7) =81544a(8) =919648a(9) =1186844

External references