# A085153 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 14 11 15 12 20 13 24 14 27 15 35 16 48 17 49 18 63 19 80 20 125 21 224 22 2400 23 4374