199752

Appears in sequences

• a(n) can be expressed as the difference of the squares of consecutive primes in just three distinct ways.at n=13A090783
• Number of dispersed Dyck paths of length n (i.e., of Motzkin paths of length n with no (1,0)-steps at positive heights) having no base pyramids. A base pyramid is a factor of the form U^j D^j (j>0), starting at the horizontal axis. Here U=(1,1) and D=(1,-1).at n=24A191393
• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+287)^2 = y^2.at n=36A205644