77953

Appears in sequences

• Largest number of straight line crossing-free spanning trees on n points in the plane.at n=5A063548
• Radii of the circles around (0,0) that contain record numbers of lattice points, rounded up to the next integer.at n=23A071384
• Number of n-bead necklaces labeled with numbers -1..1 not allowing reversal, with sum zero and first and second differences in -1..1.at n=26A209000
• Number of n-bead necklaces labeled with numbers -5..5 not allowing reversal, with sum zero and first and second differences in -5..5.at n=8A209004
• Solution of the complementary equation a(n) = 2*a(n-1) + a(n-2) + b(n-2), where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4, and (a(n)) and (b(n)) are increasing complementary sequences.at n=12A295142