293944domain: NAppears in sequencessec(sinh(x)+arctan(x)) = 1 + 4/2!*x^2 + 72/4!*x^4 + 3414/6!*x^6 + 293944/8!*x^8 + ...at n=4A013066Number x such that usigma(x) = (-1)sigma(x), where usigma(x) is the sum of unitary divisors of x (A034448) and (-1)sigma(x) is defined in A049060 .at n=14A258101