# A145793 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 2 7 3 8 5 9 8 10 17 11 40 12 108 13 294 14 944 15 3040 16 12114 17 49757 18 243775 19 1210271 20 7153531 21 43484383 22 316861269 23 2366046579 24 21108349931 25 192219307524 26 2092034177623 27 23326966046445 28 311290850669433 29 4251413939111348