42864

Appears in sequences

• Number of nodes in row n of the power tree A114622.at n=20A114623
• Expansion of Product_{k>0} (1 + A004001(k)*x^k).at n=30A147869
• Infinite product of triangle A167271 columns.at n=25A167273
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 203", based on the 5-celled von Neumann neighborhood.at n=39A270727