110340

Appears in sequences

• Trajectory of 3 under map n->7n-1 if n odd, n->n/2 if n even.at n=38A063871
• Expansion of Product_{k>=1} (1 + x^(2*k)) / (1 - x^k).at n=37A279328
• Primitive terms of A388022: numbers k that satisfy sigma(k) AND 3*k = 3*k, but none of whose proper divisors satisfy the same condition.at n=25A388025