40842

Appears in sequences

• Number of positive integers <= 2^n of form 3 x^2 + 3 y^2.at n=19A054161
• Roman numerals for n evaluated as if in base 36.at n=6A073421
• Poincaré series [or Poincare series] P(C_{6,2}; x).at n=14A124614
• a(n) = 1458*n + 18.at n=27A157505
• Least positive integer m > 1 such that 1 - m^k + m^(2k) - m^(3k) + m^(4k) is prime, where k = A003592(n).at n=50A181980
• Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,0,1,2 for x=0,1,2,3,4.at n=11A197229
• Numbers n such that if x = sigma(n)-phi(n)+tau(n)-n then n = sigma(x)-phi(x)+tau(x)-x.at n=6A238229
• Coordination sequence for (3,5,5) tiling of hyperbolic plane.at n=18A265076