# Table of n, a(n) for n = 0..32 # Generated by Georg Fischer with jOEIS, Jul 03 2021 0 1 1 0 2 0 3 0 4 0 5 13888 6 172704 7 2874816 8 29210412 9 214597824 10 1168181280 11 4794749760 12 14924626752 13 35889146496 14 66620912960 15 96671788416 16 109123263270 17 96671788416 18 66620912960 19 35889146496 20 14924626752 21 4794749760 22 1168181280 23 214597824 24 29210412 25 2874816 26 172704 27 13888 28 0 29 0 30 0 31 0 32 1