414141

Appears in sequences

• Integers are written in the form abcd...n where "a" means "At position a in this integer there is a digit b"; "b" means: "at position b there is a digit c"; "c" means: "at position c there is a digit d"; ... and "n" means: "at position n there is a digit a".at n=33A105956
• List of words over {1,4} with equal numbers of 1's and 4's.at n=22A214521