218103809

Appears in sequences

• A132749 * [1, 2, 3, ...] = A007318 * A065190.at n=24A132750
• a(n) = 2*a(n-1) - 1 with a(0)=14.at n=24A168596
• a(n) = Sum_{d|n} d * 4^(d-1).at n=12A359186
• a(n) = Sum_{d|n} (n/d) * 4^(n-d).at n=12A359204