# A107391 (b-file synthesized from sequence entry) 1 24 2 -896 3 67584 4 -4161536 5 268959744 6 -17171480576 7 1099645845504 8 -70366596694016 9 4503633987108864 10 -288229826395897856 11 18446752869802573824 12 -1180591479979922948096 13 75557865977714137104384