# A070891 (b-file synthesized from sequence entry) 1 30 2 15 3 105 4 210 5 2310 6 5005 7 1616615 8 9699690 9 223092870 10 111546435 11 2156564410 12 100280245065 13 3710369067405 14 7420738134810 15 6541380665835015