9586981

Properties

Appears in sequences

• Number of cubic residues mod 2^n.at n=24A046630
• Number of cubic residues mod 4^n.at n=12A046632
• Number of cubic residues mod 8^n.at n=8A046636
• a(n) = ceiling(2^n/n).at n=27A053638
• a(n) = round( 2^n/n ).at n=27A065482
• Expansion of 1/(1 - x - x^2 - 2*x^3).at n=24A077947
• Expansion of 1/(1+x-x^2+2*x^3).at n=24A077972
• 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=25A102643
• a(n) = a(n-3) + 2^(n-4) with a(1) = 1, a(2) = 2, a(3) = 1.at n=26A166578
• a(n) = a(n-1) + a(n-2) + 2*a(n-3) with a(0)=2, a(1)=1, a(2)=5.at n=23A226308
• Number of (n+1) X (1+1) 0..2 arrays with each row and column divisible by 7, read as a base-3 number with top and left being the most significant digits.at n=24A263366
• Prime numbersat n=639047