114380

Appears in sequences

• Arises in covering a graph by forests and a matching.at n=33A179259
• a(1) = 1; a(2) = 1; for n >= 3, a(n) = a(n-1) / gcd(a(n-1), n-1) + a(n-2) / gcd(a(n-2), n-2).at n=44A330806
• Expansion of (1/x) * Series_Reversion( x / (1/(1-x) + x^3) ).at n=11A369621