# A354648 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 1 4 3 5 9 6 22 7 54 8 135 9 368 10 1060 11 3135 12 9295 13 27472 14 81309 15 242255 16 728429 17 2208483 18 6736523 19 20634196 20 63410076 21 195467757 22 604457802 23 1875053982 24 5833449236 25 18195767301 26 56888745654 27 178238369769 28 559538565187 29 1759796017533 30 5544359742297