36164

Appears in sequences

• a(n) = 4 + 8*n + 10*n^2 + 4*n^3.at n=20A100207
• Conjectured lower bound for the number of spheres of radius 1 that can be packed in a sphere of radius n.at n=35A121346
• Number of (n+2) X (4+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000001 00000101 or 00000111.at n=20A261707
• Number of integer compositions of n that are weakly alternating and have at least two adjacent equal parts.at n=19A349800
• Number of regions in the planar Farey Ring graph FR(n) defined in A359116, including the regions between the convex hull and the bounding circle.at n=9A359117