# A250308 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 3 5 7 6 13 7 32 8 74 9 192 10 497 11 1379 12 3844 13 11111 14 32500 15 96977 16 292600 17 894353 18 2758968 19 8590147 20 26947946 21 85138589 22 270646644 23 865260519 24 2780393959 25 8976443582 26 29104709339 27 94741504408 28 309529405055 29 1014690513653 30 3336805406462 31 11005284876792