199729

Properties

Appears in sequences

• a(n) = ceiling(2^(n+1)/n).at n=20A053639
• A006530(x)=2 is a local minimum if x=2^n. Running upward with argument x, the largest prime divisor should increase. The value of first peak is a(n).at n=21A102643
• Partial sums of round(4^n/7).at n=10A178872
• Prime numbersat n=17961