# A034340 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 8 5 16 6 36 7 79 8 186 9 462 10 1222 11 3435 12 10397 13 33578 14 115624 15 419789 16 1585217 17 6130130 18 23928972 19 93161541 20 358570997 21 1356178991 22 5021267644 23 18160079508 24 64086748267 25 220608700157 26 740874170362 27 2428425908049 28 7773761586051 29 24320543815203 30 74418574119634 31 222890851257632