13141516

Appears in sequences

• Partition the concatenation 1234567...of natural numbers into successive strings which are multiples of 4, all different and > 4. (0 never taken as the most significant digit.)at n=3A077297
• Multiples of 4 that are the concatenation of 4 consecutive natural numbers.at n=2A082242
• Numbers whose decimal expansion is a concatenation of 4 consecutive increasing nonnegative numbers.at n=12A279204