# A096770 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 8 5 21 6 51 7 127 8 303 9 734 10 1751 11 4200 12 10004 13 23918 14 56981 15 135958 16 323996 17 772530 18 1840993 19 4388456 20 10458354 21 24926754 22 59405383 23 141581236 24 337417607 25 804153140 26 1916469872 27 4567399008 28 10885108498 29 25941679513 30 61824709789