20000100

Appears in sequences

• Concatenate the positions of digits 0, 1,..., 9 in the decimal representation of n, using 1 for the rightmost digit etc., and 0 when the digit does not occur.at n=27A260519
• Concatenate the positions of digits 9, 8,..., 0 in the decimal representation of n, using 1 for the leftmost digit etc., and 0 when the digit does not occur.at n=27A260522
• Numbers whose k-th digit indicates the number of digits which occur k times.at n=7A380985