33582

Appears in sequences

• Number of dyslexic identity planted planar trees with n+1 nodes and leaves of 2 colors.at n=9A032103
• Sums of groups in A075639.at n=21A075640
• a(n) = 2*binomial(2*n,n)/(n+1) - n.at n=9A132788
• Numbers k such that there are 10 digits in k^2 and for each factor f of 10 (1, 2, 5) the sum of digit groupings of size f is a square.at n=9A153748
• G.f.: exp( Sum_{n>=1} sigma(n*2^(n-1))*x^n/n ).at n=11A176361
• Number of compositions of n such that the maximal distance between two identical parts equals five.at n=15A262200
• Number of divisors of n! with equal prime multiplicities.at n=51A336415