# A195068 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 7 4 37 5 279 6 2919 7 42011 8 833314 9 22937285 10 882905932 11 47833330376 12 3664667588132 13 398332024544864 14 61567508987316736 15 13553812089298857340 16 4254977588443309549759 17 1906584878492298737985244 18 1220249817955981418494900097