# A148328 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 5 4 14 5 42 6 130 7 415 8 1365 9 4592 10 15727 11 54593 12 191610 13 679420 14 2430721 15 8763775 16 31807636 17 116106836 18 426029867 19 1570602958 20 5814799002 21 21610381589 22 80590043893 23 301484592756 24 1131111868525 25 4255026611884 26 16045919249512 27 60646837901675 28 229700320188818 29 871691280039250 30 3314013545656012