# A107515 (b-file synthesized from sequence entry) 0 1 1 760 2 105680 3 5802600 4 173706400 5 3335980632 6 45416596080 7 469222570440 8 3865485537600 9 26359226243000 10 153175255755792 11 776224339239720 12 3494649628001760 13 14191735033679640 14 52642318181020080 15 180240670086160008 16 574673195347190400 17 1719066064842900600