144153domain: NAppears in sequencesProduct_{n>=1} (1 + a(n)*x^n/n!) = 1 + arcsin(x).at n=8A353818Product_{n>=1} 1 / (1 - a(n)*x^n/n!) = 1 + arcsin(x).at n=8A353913a(n) is the smallest number which can be represented as the sum of n distinct positive cubes in exactly 2 ways, or -1 if no such number exists.at n=25A374417