# A182349 (b-file synthesized from sequence entry) 0 1 1 6 2 30 3 120 4 435 5 1446 6 4536 7 13560 8 39045 9 108950 10 296178 11 787368 12 2053335 13 5265750 14 13306380 15 33188040 16 81815145 17 199585830 18 482290630 19 1155444120 20 2746489851 21 6481600326 22 15195437280 23 35407315800 24 82038719565 25 189089191926 26 433704632346 27 990244936520