Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 21 (most significant digit on right and removing all least significant zeros before concatenation).

A029538

Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 21 (most significant digit on right and removing all least significant zeros before concatenation).

Terms

    a(0) =1a(1) =5a(2) =40a(3) =65a(4) =80a(5) =928a(6) =1504a(7) =4568a(8) =4640a(9) =4880a(10) =5065a(11) =11201a(12) =31145a(13) =40555a(14) =89480a(15) =812645a(16) =1281320

External references