38387

Appears in sequences

• a(n)=a(n-1)+floor((a(n-2)+a(n-3))/2), with a(n)=n for n<3.at n=26A214040
• a(n) = floor(M(g(n-1)+1,..,g(n))), where M = harmonic mean and g(n) = n*(n + 1)*(n + 2)*(n + 3)/24.at n=29A227018
• Semiprimes sp such that sp plus its digit sum is a perfect square.at n=31A244733
• The number of ways of placing 2n-1 white balls and 2n-1 black balls into unlabeled bins such that each bin has both an odd number of white balls and black balls.at n=12A302919