# A099232 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 6 4 13 5 32 6 72 7 169 8 386 9 894 10 2053 11 4736 12 10896 13 25105 14 57794 15 133110 16 306493 17 705824 18 1625304 19 3742777 20 8618690 21 19847022 22 45703093 23 105244160 24 242353440 25 558085921 26 1285146242 27 2959404006 28 6814842733 29 15693054752 30 36137582952