-278

Appears in sequences

• Unique attractor for (RIGHT then MOBIUS) transform.at n=56A007554
• Staircase of coefficients of polynomials used for column g.f.s of triangle A060923.at n=15A061186
• Triangle read by rows: Characteristic polynomials of lower triangular Bell number matrix.at n=21A101908
• Riordan array (1/(1+xc(-2x)), xc(-2x)/(1+xc(-2x))), c(x) the g.f. of A000108.at n=17A114189
• Triangle of coefficients of characteristic polynomials of anti-symmetrical tridiagonal matrices: Middle diagonal: a=1; Lower first subdiagonal: b=2; Upper first subdiagonal: c=-2; Example: M(3) {{1, -2, 0}, {2, 1, -2}, {0, 2, 1}}.at n=22A136643
• Real part of (2 + i)^n, where i = sqrt(-1).at n=7A139011
• Coefficients of the eighth-order mock theta function T_0(q).at n=39A153155
• a(n) = floor(d(n)/18^(n-1)) where d(n) = 0, 1, -8, 352, -5120,.. and d(n) = -8*d(n-1) +288*d(n-2).at n=36A174427
• Triangle T(n, k, q) = (1-q^n)*( binomial(n, k) - 1 ) + 1, with q = 2, read by rows.at n=17A174718
• Triangle T(n, k, q) = (1-q^n)*( binomial(n, k) - 1 ) + 1, with q = 2, read by rows.at n=18A174718
• Triangle T(n, k, q) = (1-q^n)*(1/k)*binomial(n-1, k-1)*binomial(n, k-1) - (1-q^n) + 1, for q = 2, read by rows.at n=11A174731
• Triangle T(n, k, q) = (1-q^n)*(1/k)*binomial(n-1, k-1)*binomial(n, k-1) - (1-q^n) + 1, for q = 2, read by rows.at n=13A174731
• Imbalance of the number of parts of all partitions of n.at n=17A194796
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of f(i,j) = gcd(prime(i), prime(j)) (A204118).at n=17A204119
• Expansion of g.f. (Product_{r>=1} (1 - x^r))*x^(k^2)/Product_{i=1..k} ((1-x^i)^2) with k=4.at n=64A246578
• Expansion of Product_{k>=1} (1-x^(3*k))/(1-x^(2*k)).at n=39A262346
• Imaginary parts of b(n) sequence used to define A143056.at n=13A272665
• Nearest integer to n^2*sin(n).at n=17A274087
• Coefficients in the expansion of 1/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = e - 1.at n=16A279590
• G.f.: Re((i*x; x)_inf), where (a; q)_inf is the q-Pochhammer symbol, i = sqrt(-1).at n=49A292042