# A346749 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 2 4 7 5 26 6 124 7 628 8 3565 9 22096 10 149176 11 1080868 12 8372543 13 68957268 14 601351748 15 5528967282 16 53416626441 17 540682811424 18 5718911631856 19 63060992662328 20 723382253378395 21 8616075340134868 22 106374847828850676 23 1359171823319541070 24 17946987240664242493