# A036625 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 4 5 9 6 20 7 48 8 114 9 282 10 701 11 1763 12 4438 13 11212 14 28287 15 71357 16 179696 17 451946 18 1134720 19 2844954 20 7122041 21 17805884 22 44459523 23 110882964 24 276241029 25 687501846 26 1709406423 27 4246490811 28 10540185493 29 26140852721 30 64782959403