-827

Appears in sequences

• Numerators of Van der Pol numbers.at n=15A003164
• Numerators of coefficients in Taylor series expansion of arccosh(exp(x)-sin(x)).at n=9A013305
• G.f. A(x) defined by: A(x)^3 consists entirely of integer coefficients between 1 and 3 (A083953); A(x) is the unique power series solution with A(0)=1.at n=19A084203
• G.f. A(x) satisfies: A(x)^2 equals the g.f. of A110637, which consists entirely of numbers 1 through 8.at n=13A112571
• a(n) = -n^2 + 9*n + 23.at n=34A126719
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 397", based on the 5-celled von Neumann neighborhood.at n=17A271692
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 425", based on the 5-celled von Neumann neighborhood.at n=17A272092
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 485", based on the 5-celled von Neumann neighborhood.at n=17A272505
• E.g.f. satisfies A(x) = exp(x / A(-x)^3).at n=4A360990
• Expansion of g.f. A(x) = Sum_{n=-oo..+oo} x^n * (i + x^n)^(2*n), where i^2 = -1.at n=35A363569