To proceed from one term to the next, we apply *7, /6, +5, *4, /3, +2, *1, and now we must stop since we cannot divide by 0. -
Bernard Schott, Feb 14 2019
The sequence could have started two steps earlier, giving -18, -2, 6, 42, 7, 12, 48, 16, 18, 18. -
N. J. A. Sloane, Feb 14 2019
