42309

Appears in sequences

• Number of n-leaf binary trees that do not contain (()((()())((()())()))) as a subtree.at n=11A159771
• a(n) = Sum_{y=1..n} Sum_{x=1..n} floor((x^k + y^k)^(1/k)) with k = 2.at n=37A211791
• G.f.: Sum_{k>=0} x^(k*(k+1)/2) * Product_{j=1..k} 1/(1 - x^j)^4.at n=18A376710