-716

Appears in sequences

• Expansion of (1-x)^(-1)/(1+2*x+x^3).at n=9A077926
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of the symmetric matrix A202871; by antidiagonals.at n=15A202872
• Expansion of Sum_{n>=0} x^(n^2-n) / (1 + x^n)^n.at n=65A260148
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 131", based on the 5-celled von Neumann neighborhood.at n=17A270224
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 278", based on the 5-celled von Neumann neighborhood.at n=31A271098
• Expansion of g.f. 1/((1 - x)^2*(1 - 3*x + 3*x^2)).at n=9A279231
• Coefficients in the expansion of ([s] + [2s]x + [3s]x^2 + ...)/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = sqrt(3), s = r/(1-r).at n=21A279630
• Expansion of Sum_{k>=0} x^(k*(k+1)/2) / Product_{j=1..k} (1 + x^j)^j.at n=42A306706
• Expansion of (1 + x)^2 / ((1 - x)^2*(1 + 2*x)^2).at n=9A322039
• Irregular triangle read by rows: T(n,k) = A344031(n,k)/2, n >= 1, 0 <= k <= 2*n-2.at n=36A344059
• G.f. A(x) satisfies: A(x) = A(x^3 - x^5)/x^2.at n=27A350479
• a(n) is the nearest integer to 1/gamma(x_n), where x_n is the n-th extrema of gamma(x).at n=7A377506