264050

Appears in sequences

• Sequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=0, k=0 and l=-2.at n=18A176752
• Irregular triangle read by rows where T(n,k) is the number of labeled loop-graphs covering n vertices with k edges.at n=50A369199