-2738

Appears in sequences

• (Product of primes <= n) - 2^(n-1).at n=15A068511
• List of quadruples (r,s,t,u): the matrix M = [[4,12,9][2,5,3][1,2,1]] is raised to successive negative powers, then (r,s,t,u) are the square roots of M[1,3], M[1,1], M[3,3], M[3,1] respectively.at n=26A249580
• Coefficients in the expansion of 1/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = sqrt(2).at n=36A279587
• A377091(k) for k in A379802.at n=33A379803