3161340

Appears in sequences

• Areas of almost-equilateral Heronian triangles (integral side lengths m-1, m, m+1 and integral area).at n=6A011945
• Numerators of continued fraction convergents to sqrt(3)/2.at n=12A144535
• Values of x satisfying x^2 = floor(y^2/3 + y).at n=18A232771
• a(n) = Sum_{k=0..floor(n/3)} binomial(n-1-2*k,k) * binomial(2*n-6*k,n-3*k).at n=12A360291