20766

Appears in sequences

• Coefficient of q^2 in nu(n), where nu(0)=1, nu(1)=b and, for n>=2, nu(n)=b*nu(n-1)+lambda*(1+q+q^2+...+q^(n-2))*nu(n-2) with (b,lambda)=(1,2).at n=12A074353
• Euler transform of 1, 3, 8, 23, ... (A050535).at n=8A076867
• Number of increasing sequences of n integers x(1),...,x(n) with values in 1..5*n such that x(j) divides x(k) iff j divides k.at n=12A180382
• Number of odd parts in the partitions of n into 10 parts.at n=40A309660