115409

Appears in sequences

• Expansion of Sum_{i>=1} mu(i)^2*x^i/(1 - x^i) * Product_{j>=i} 1/(1 - mu(j)^2*x^j), where mu() is the Moebius function (A008683).at n=44A284829
• The number of length 2n - 1 strings over the alphabet {0, 1} such that the first half of any initial odd length substring is a permutation of the second half.at n=24A297789