# A306918 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 5 4 7 5 18 6 36 7 118 8 265 9 263212 10 2217881 11 152599933940 12 542101086242752217003726400434973829461152534 13 63340828764059520458379290673240751904836319648345