-1531

Appears in sequences

• Numerators of coefficients in Taylor series expansion of log(cotan(x)*arcsinh(x)).at n=5A012868
• a(n) = 36*n^2 - 810*n + 2753, producing the conjectured record number of 45 primes in a contiguous range of n for quadratic polynomials, i.e., abs(a(n)) is prime for 0 <= n < 44.at n=14A117081
• a(n) = A174817(n) - Mnr; where Mnr = A001228(26) = 808017424794512875886459904961710757005754368000000000, also called the Monster number, cf. A003131.at n=25A174818
• T(n, k) = [x^k] Sum_{j=0..n} j!*binomial(x, j), for 0 <= k <= n, triangle read by rows.at n=30A176663
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 213", based on the 5-celled von Neumann neighborhood.at n=21A270904
• a(n) = -n^2 + 21*n - 1.at n=50A332884
• E.g.f. A(x) satisfies A(x) = exp(-x*A(x)^3) + x*A(x).at n=5A379910
• Expansion of the series e(-q), where the series e(q) is Morier-Genoud and Ovsienko's q-analog of Euler's number e.at n=25A392020