# A049123 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 6 5 22 6 89 7 380 8 1679 9 7602 10 35072 11 164266 12 779022 13 3733444 14 18053457 15 87977300 16 431628390 17 2130222854 18 10568712275 19 52681070700 20 263702193164 21 1325015897814 22 6680716274936 23 33789860569680 24 171393770952775