A (7/4)+ power is a word of the form xx', where x' is a prefix of x and |x'| > (3/4)|x|. Every odd length (2n+1) is guaranteed to have at least one such palindrome.

For n = 7 there are 6 palindromes of length 15 satisfying the conditions: {010201202102010, 020102101201020, 101210212012101, 121012010210121, 202120121021202, 212021020120212}.