# A051713 (b-file synthesized from sequence entry) 1 1 2 60 3 60 4 70 5 84 6 504 7 120 8 990 9 165 10 572 11 1092 12 2730 13 280 14 4080 15 2448 16 1938 17 855 18 7980 19 1540 20 10626 21 3036 22 4600 23 7800 24 17550 25 819 26 21924 27 12180 28 8990 29 7440 30 32736 31 5984 32 39270 33 5355 34 15540 35 25308 36 54834 37 4940 38 63960 39 34440