# A268529 (b-file synthesized from sequence entry) 1 1 2 3 3 6 4 18 5 36 6 108 7 159 8 180 9 540 10 648 11 1026 12 1077 13 1617 14 1818 15 2049 16 3075 17 3888 18 6156 19 6930 20 7128 21 7668 22 9717 23 14577 24 18465 25 23328 26 23757 27 35637 28 42120 29 42768 30 46329 31 56373 32 70956 33 85212 34 97197 35 145797 36 218697 37 276048 38 314925 39 367413 40 672624 41 1008936