21222324
domain: N
Appears in sequences
- Multiples of 4 that are the concatenation of 4 consecutive natural numbers.at n=4A082242
- Concatenate the consecutive increasing numbers starting with Harshad(n) and ending with Harshad(n+1).at n=13A112131
- Numbers whose decimal expansion is a concatenation of 4 consecutive increasing nonnegative numbers.at n=20A279204