2351440

Appears in sequences

• a(n) = A026615(2*n-1, n-1).at n=11A026619
• a(n) = A026615(n, floor(n/2)).at n=23A026621
• Number of sequences {s(i): i=0..n} such that |s(i)-s(i-1)|=1, i=1..n and s(i)=0 at four values of i, one of which is i=0.at n=23A052207
• Number of labeled pure 2-complexes on n nodes (0-simplexes) with 5 2-simplexes and 9 1-simplexes.at n=12A054558
• Denominators of partial sums of a certain series of inverse central binomial coefficients.at n=8A145567
• Denominators of partial sums of a certain series of inverse central binomial coefficients.at n=9A145567