222119

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 89 ones.at n=11A031857
• Number of nonincreasing odd cycles in all permutations of {1,2,...,n}. A cycle (b(1), b(2), ...) is said to be increasing if, when written with its smallest element in the first position, it satisfies b(1)<b(2)<b(3)<... . A cycle is said to be odd if it has an odd number of entries.at n=9A186768