284257

Appears in sequences

• Numerators of continued fraction convergents to sqrt(987).at n=7A042910
• a(1)=1, a(n+1)=ceiling(phi*a(n))+1 if a(n) is odd, a(n+1)=ceiling(phi*a(n)) if a(n) is even, where phi=(1+sqrt(5))/2.at n=24A092263
• Sum of three edges of box having both integral orthogonal sides and integral geodesic distances between opposite vertices.at n=11A095257
• a(n) = 648*n^2 - 72*n + 1.at n=20A154514
• a(n) = 10368*n^2 - 15840*n + 6049.at n=5A157264
• a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 1, a(1) = 1, a(2) = 3, a(3) = -3.at n=32A295676
• Sum of the legs of the unique primitive Pythagorean triple (a,b,c) such that (a-b+c)/2 = A000045(n) and its long leg and hypotenuse are consecutive natural numbers.at n=14A382845