40248

Appears in sequences

• Sum of primes in n-th shell of prime spiral.at n=6A053997
• a(n) = 441*n^2 - 394*n + 88.at n=9A157734
• a(n) = largest m such that Sum_{k=0..m} 1/(mk+1) < 2Pi.at n=2A195914
• Number of 2Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 3 neighboring 1s.at n=9A297638
• a(n) is a number of lattice points in 3D Cartesian grid between cube with edge length 2*n centered in origin and its inscribed sphere. Three pairs of the cube's faces are parallel to the planes XOY, XOZ, YOZ respectively.at n=22A303743