50414138775
domain: N
Appears in sequences
- Denominator of b(n) = Sum_{k=1..n} (-1)^(k+1)/k*Sum_{i=0..k-1} (-1)^i/(2*i+1).at n=10A073595
- Reduced denominators of x^(2n) in the series expansion of erf(x)^2 Pi/4 about 0.at n=11A103980
- Number of relaxed compacted binary trees of right height at most one with empty initial and final sequence on level 0.at n=12A288950