# A349264 (b-file synthesized from sequence entry) 0 1 1 4 2 16 3 128 4 1280 5 16384 6 249856 7 4456448 8 90767360 9 2080374784 10 52975108096 11 1483911200768 12 45344872202240 13 1501108249821184 14 53515555843342336 15 2044143848640217088 16 83285910482761809920 17 3605459138582973251584 18 165262072909347030040576 19 7995891855149741436305408