shuffle_square (377B)
1 # Shuffle square 2 3 A [word] which can be written as the [shuffle] of a word with itself 4 5 [np_complete] to test if a word is a shuffle square 6 7 It's [open_problem] what is the minimum [alphabet] size required to have infinitely many words without shuffle squares 8 - cf https://a3nm.net/work/research/questions/#words-without-shuffle-squares 9 10 Up: [shuffle] 11 12 See also: [square_word]