-2050

Appears in sequences

• (1/18)*Difference between concatenation of n and n^2 and concatenation of n^2 and n.at n=24A055435
• Expansion of psi(q^5)/psi(q) in powers of q where psi() is a Ramanujan theta function.at n=39A116494
• Coefficients in the expansion of 1/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = sqrt(2).at n=30A279587