# A148178 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 12 5 28 6 91 7 242 8 839 9 2416 10 8782 11 26700 12 100437 13 317981 14 1226766 15 4010820 16 15782053 17 52955735 18 211754709 19 725756163 20 2941028924 21 10260046434 22 42043257062 23 148908505647 24 615994366991 25 2210482944544 26 9219230935633 27 33462915243756 28 140563142274370 29 515352054090757 30 2178406144490742