# A301381 (b-file synthesized from sequence entry) 0 1 1 0 2 2 3 2 4 6 5 24 6 80 7 208 8 922 9 2310 10 8794 11 26000 12 86632 13 274120 14 893552 15 2837882 16 9254642 17 29470852 18 95567342 19 306155908 20 987994256 21 3174707284 22 10228816628 23 32893256236 24 105937526030 25 340778467916 26 1097194416030 27 3530389210580 28 11364292475448 29 36571646955122 30 117713073900332