-3221

Appears in sequences

• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of the symmetric matrix A185957; by antidiagonals.at n=17A202678
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 201", based on the 5-celled von Neumann neighborhood.at n=39A270723
• Expansion of Product_{j>=1} (1 - x^j)/(1 - x^(3*j))^3.at n=38A286952