81773

Properties

Appears in sequences

• Number of ways to build a contiguous building with n LEGO blocks of size 1 X 6 on top of a fixed block of the same size so that the building is symmetric after a rotation by 180 degrees.at n=5A123799
• Primes that are the sum of the squares of three integers that form an arithmetic sequence with difference 7.at n=21A227994
• Number of ways to split an integer partition of n into contiguous subsequences with weakly increasing sums.at n=33A336136
• Prime numbersat n=7999