69125

Appears in sequences

• Trajectory of 1 under map n->9n+1 if n odd, n->n/2 if n even.at n=30A033962
• Trajectory of 3 under map n->9n+1 if n odd, n->n/2 if n even.at n=40A037102
• a(n) = n + floor(Sum_{k<n} a(k)/2) with a(0)=0.at n=26A079719
• E.g.f. satisfies: A'(x) = Product_{n>=1} 1/(1 - A(x)^n), where A(0) = 0.at n=6A233860
• Number of partitions of the n-th n-gonal pyramidal number into n-gonal pyramidal numbers.at n=10A337797