# A223450 (b-file synthesized from sequence entry) 1 1 2 1 3 10 4 1 5 26 6 75 7 1 8 42 9 399 10 500 11 1 12 58 13 927 14 5220 15 3125 16 1 17 74 18 1815 19 17380 20 64285 21 18750 22 1 23 106 24 2751 25 46884