-2807

Appears in sequences

• Expansion of (Product_{j>=1} (1-(-x)^j) - 1)^7 in powers of x.at n=37A001485
• a(n)=1-4*n-4*n^2.at n=26A184882
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 65", based on the 5-celled von Neumann neighborhood.at n=27A270086
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 81", based on the 5-celled von Neumann neighborhood.at n=29A270101
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 323", based on the 5-celled von Neumann neighborhood.at n=27A271256
• Expansion of Product_{k>=1} 1/(1 + x^k)^(k*(2*k-1)).at n=12A295121