# A275324 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 3 4 3 5 15 6 10 7 70 8 35 9 315 10 126 11 1386 12 462 13 6006 14 1716 15 25740 16 6435 17 109395 18 24310 19 461890 20 92378 21 1939938 22 352716 23 8112468 24 1352078 25 33801950 26 5200300 27 140408100 28 20058300 29 581690700 30 77558760 31 2404321560 32 300540195 33 9917826435 34 1166803110 35 40838108850