# A289928 (b-file synthesized from sequence entry) 0 1 1 4 2 14 3 48 4 162 5 547 6 1842 7 6206 8 20906 9 70438 10 237326 11 799629 12 2694199 13 9077599 14 30585239 15 103051135 16 347211149 17 1169861760 18 3941626163 19 13280557904 20 44746308037 21 150764154490 22 507971076799 23 1711511703373 24 5766612400708 25 19429501132982 26 65464000013233