-2346

Appears in sequences

• Expansion of (Product_{j>=1} (1-(-x)^j) - 1)^7 in powers of x.at n=42A001485
• Expansion of reciprocal of Hauptmodul for Gamma_0(18).at n=52A092848
• A polynomial of matrices is used to make a triangular sequence. The upper triangular antidiagonal Steinbach matrices are summed over their characteristic polynomial triangular sequences to give a new sequence of matrices: the characteristic polynomials of these new summed matrices are, then, used to make up this triangular sequence.at n=26A123951
• Expansion of q^(-1) * (phi(q) / phi(q^9) - 1) / 2 in powers of q^3 where phi() is a Ramanujan theta function.at n=52A128111
• Array of coefficients of powers of x^2 for S(2*n,x)^3 with Chebyshev's S polynomials A049310.at n=47A220666
• Expansion of (f(-x^2) / phi(-x^3))^2 in powers of x where phi(), f() are Ramanujan theta functions.at n=26A233034
• Difference between sums of quadratic residues and non-residues modulo n (residues are not necessarily coprime to n).at n=91A255644
• a(n) = exp(n) * Sum_{k>=0} (k + n)^n * (-n)^k / k!.at n=6A334243