53676

Appears in sequences

• Number of partitions of n into parts of 18 kinds.at n=5A023016
• a(n) = 3rd elementary symmetric function of the first n+2 odd positive integers.at n=6A024197
• Triangle of coefficients in expansion of (x+1)*(x+3)*...*(x + 2n - 1) in rising powers of x.at n=51A028338
• Number of rooted trees with n nodes with every leaf at height 10.at n=21A048815
• Triangle read by rows: T(n,k) is number of paths from (0,0) to (3n,0) that stay in the first quadrant (but may touch the horizontal axis), consisting of steps u=(2,1),U=(1,2), or d=(1,-1) and having height of last peak equal to k.at n=45A109158
• Amicable triples: numbers such that sigma(x) = sigma(y) = sigma(z) = x+y+z, x<y<z. We order these triples according to the common value of sigma. Sequence gives y numbers.at n=10A125491
• A005117(k) - 1 where k is the least k such that A389412(k) = n.at n=39A389879