-2040

Appears in sequences

• q-integers for q=-13.at n=3A015000
• Triangle of (Gaussian) q-binomial coefficients for q = -13.at n=11A015129
• Triangle of (Gaussian) q-binomial coefficients for q = -13.at n=13A015129
• Gaussian binomial coefficient [ n,3 ] for q = -13.at n=1A015286
• Coefficients for rewriting generalized falling factorials into ordinary falling factorials.at n=18A136656
• Expansion of (8 / 7) * (1 - eta(q)^7 / eta(q^7)) - 7 * (eta(q) * eta(q^7))^3 in powers of q.at n=39A138810
• a(n) = 4*( 1-(-1)^n) -2^n.at n=11A166978
• Expansion of q / (chi(q) * chi(q^2) * chi(q^3) * chi(q^6))^2 in powers of q where chi() is a Ramanujan theta function.at n=23A212770
• Table T(n,k), n >= 0, k = 1..2^n, read by rows, giving coefficients of iterations of polynomial x^2-x: see Comments for precise definition.at n=44A273894
• G.f.: Sum_{n>=0} x^n * (x^n + i)^n / (1 + i*x^(n+1))^(n+1), where i^2 = -1.at n=45A323675
• G.f.: x / (Sum_{k>=1} x^k / (1 + x^k)^2).at n=14A335228
• Square array A(n,k), n >= 0, k >= 1, read by antidiagonals: A(n,k) = n! * [x^n] (1 + k*x)^(n/k).at n=59A384216
• Triangle read by rows: T(n,k) = n! * coefficient of m^k in the polynomial counting labeled digraphs with m nodes and n arcs and without directed paths of length >= 2, with 0 <= k <= 2*n.at n=32A387663