-6553600

Appears in sequences

• Inverse binary transform of A027656.at n=21A081037
• a(n) = numerator of r(n): r(n) is such that, for every positive integer n, the continued fraction (of rational terms) [r(1);r(2),...,r(n)] equals n(n+1)/2, the n-th triangular number.at n=12A128536