-1519

Appears in sequences

• Expansion of g.f. Product_{n>=1} (1-x^n)*(1-x^(5*n))/(1-x^(3*n))^2.at n=43A054274
• First differences of A014292.at n=22A104862
• a(n) = Sum_{k=0..n} A105595(k)*(-1)^k*A105595(n-k) (interpolated zeros suppressed).at n=38A105596
• Expansion of (1-5*x-x^2+x^3)/((1+x)*(1-x)^3).at n=38A141354
• A triangle of matrix polynomials: m(n)=antisymmeticmatix(n).Transpose[antisymmeticmatix(n)].at n=31A158335
• a(n)=1-4*n-4*n^2.at n=19A184882
• G.f.: imaginary part of 1/(1 - i*x - i*x^2) where i=sqrt(-1).at n=21A201838
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 342", based on the 5-celled von Neumann neighborhood.at n=39A269512
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 261", based on the 5-celled von Neumann neighborhood.at n=19A271064
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 361", based on the 5-celled von Neumann neighborhood.at n=23A271417
• Coefficients in the power series expansion of A(x) = Sum_{n=-oo..+oo} n * x^n * (1 - x^n)^(n-2).at n=37A356774