# A058832 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 630 8 28560 9 1330560 10 74314800 11 5057098200 12 413836259760 13 40145915529720 14 4558576721418720 15 599227672837944150 16 90306248160926397600 17 15470047011889029399840 18 2989635481745274974582880