# A020544 (b-file synthesized from sequence entry) 0 1 1 1 2 13 3 181 4 3313 5 85681 6 3106081 7 152379361 8 9753972481 9 790089189121 10 79009114867201 11 9560105293939201 12 1376655193941350401 13 232654728224433715201 14 45600326738788914892801 15 10260073516337350497792001 16 2626578820184244778524672001