414243

Appears in sequences

• Concatenate the consecutive increasing numbers starting with prime(n) and ending with prime(n+1).at n=12A111875
• Partition of the positive integers on minimal blocks such that concatenation of numbers in each block is an evil number (A001969). Sequence lists the evil numbers obtained in this way.at n=24A248171
• Twin prime pairs concatenated to their average in decimal representation (with the lesser twin prepended and the greater twin appended).at n=5A268145