# A359960 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 30 4 210 5 2310 6 30030 7 690690 8 14804790 9 223092870 10 8254436190 11 200560490130 12 8222980095330 13 304250263527210 14 13082761331670030 15 614889782588491410 16 32589158477190044730 17 1987938667108592728530 18 117288381359406970983270 19 7858321551080267055879090