MindYourPuzzleMindYourPuzzle
Insight · ★★★☆☆ · ~5 min

Weird Sequences

1, 11, 21, 1211, 111221, … what comes next?

by MindYourPuzzle

Three sequences — what comes next?

a) 1, 11, 21, 1211, 111221, ? b) 10, 11, 12, 13, 14, 20, 22, 101, ?, ? c) 2, 2, 1, 1, 2, 1, 2, 2, 1, ?, ?

Hints