-2764

Appears in sequences

• Triangle T(n,k) read by rows: see formula lines for definition.at n=15A097474
• Left-hand edge of triangle in A097474.at n=5A097716
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 173", based on the 5-celled von Neumann neighborhood.at n=29A270468