-1846

Appears in sequences

• Expansion of (1-x-x^N)/((1-x)(1-x^2)(1-x^3)...(1-x^N)) for N = 5.at n=47A060024
• Second term in the continued fraction expansion of StieltjesGamma[n].at n=22A066034
• Expansion of psi(x) / phi(x) in powers of x where phi(), psi() are Ramanujan theta functions.at n=29A083365
• L.g.f.: Sum_{n>=1} a(n)*x^n/n = log( Sum_{n>=0} x^(2^n-1) ).at n=17A162415
• Let A be the infinite lower triangular Toplitz matrix with Sigma(n) in every column; and B the diagonalized, signed variant of A002040 with the rest zeros. Sequence gives the triangle in the lower half of A*B read by rows.at n=54A187566
• Expansion of Sum_{k>=0} x^k * Product_{j=0..k-1} (3 * j - x).at n=6A353258