# A046526 (b-file synthesized from sequence entry) 1 1 2 2 3 8 4 9 5 12 6 18 7 24 8 36 9 40 10 56 11 60 12 72 13 80 14 84 15 96 16 108 17 132 18 180 19 240 20 252 21 288 22 360 23 480 24 504 25 720 26 1260