# A357663 (b-file synthesized from sequence entry) 0 1 1 0 2 4 3 48 4 464 5 4480 6 48448 7 621824 8 9320704 9 154890240 10 2746131456 11 51237908480 12 1007228375040 13 20965557829632 14 463091379159040 15 10826828061147136 16 266438312153120768 17 6861616219559034880 18 184128217520198123520 19 5135753969867535941632