-1641

Appears in sequences

• Expansion of -1/(1 - x + x^2 - x^3 + x^4 + x^6).at n=47A125629
• Years in which a transit of Venus (as seen from Earth) took place or is expected to occur, according to the catalog by Fred Espenak.at n=6A171467
• Values of n such that L(15) and N(15) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=24A227518
• Coefficients in the expansion of ([s] + [2s]x + [3s]x^2 + ...)/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = sqrt(2), s = sqrt(3).at n=37A279628
• Dirichlet g.f.: zeta(s-1) / (zeta(s) * zeta(s-2)).at n=40A328502