11957946domain: NAppears in sequencesLeast integer such that e^n/(ceiling(e^n) + a(n)) monotonically decreases.at n=16A084787Area of the unique primitive Pythagorean triple (a,b,c) such that (a-b+c)/2 = A002378(n) and its long leg and hypotenuse are consecutive natural numbers.at n=13A385187