220075

Appears in sequences

• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 654", based on the 5-celled von Neumann neighborhood.at n=17A283587
• a(1) = 1, for n >= 2, a(n) = Sum_{i=1..floor(log_2(n))} a(n-i).at n=22A306622
• Regular triangle read by rows where T(n,k) is the number of labeled connected graphs with loops with n edges and k vertices, 1 <= k <= n+1.at n=50A322147
• Irregular triangle read by rows where T(n,k) is the number of labeled connected loop-graphs covering n vertices with k edges.at n=50A369195