# A002748 (b-file synthesized from sequence entry) 0 1 1 2 2 3 3 26 4 13 5 1074 6 -1457 7 61802 8 7929 9 4218722 10 -6385349 11 934344762 12 -5065189307 13 141111736466 14 235257551943 15 23219206152074 16 -97011062913167 17 11887164842925762 18 -91890238533000461 19 4819930221202545242 20 -14547510704199530499 21 1184314832978574919922