108744

Appears in sequences

• a(n) = smallest index i such that A010062(i) >= 2^n.at n=20A229167
• Large-q series expansion for the exponential of the corner free energy of the square-lattice zero-temperature Potts antiferromagnet, in terms of the variable z = 1/(q - 1).at n=21A238836
• Expansion of Product_{k>=1} 1/((1 - x^k)*(1 - x^(5*k))).at n=42A318028
• a(n) = Sum_{p <= n <= q < 2n, p,q prime} (p * q).at n=36A352777
• a(n) is the number of 5 element sets of distinct integer-sided trapezoids whose base angles are 60 degrees that fill an equilateral triangular grid of side n units, where one trapezoid has a larger base of n units.at n=39A391453