-3564

Appears in sequences

• Expansion of sqrt(1-4x)/(1-2x^2).at n=9A106193
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of the symmetric matrix A202676 based on (1,4,7,10,13,...); by antidiagonals.at n=42A202677
• Expansion of 1/(1-12*x+48*x^2)^(1/2).at n=5A258723
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 165", based on the 5-celled von Neumann neighborhood.at n=33A270460