# A150641 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 27 4 117 5 514 6 2327 7 10642 8 49357 9 230744 10 1087567 11 5155525 12 24567985 13 117557404 14 564554431 15 2719378931 16 13133588981 17 63574966648 18 308364056247 19 1498342592035 20 7291987338193 21 35538167303224 22 173419545231847 23 847231084853706 24 4143441713783393 25 20283190601772934 26 99378472344960367