# A053355 (b-file synthesized from sequence entry) 1 2 2 6 3 8 4 18 5 20 6 22 7 36 8 62 9 108 10 120 11 162 12 180 13 222 14 450 15 530 16 706 17 1028 18 1200 19 1296 20 1362 21 2280 22 3788 23 7130 24 8082 25 8150 26 10226 27 10302 28 11578 29 48426 30 57890 31 73890 32 139346 33 201378 34 225322 35 1134740 36 1584740 37 1634878 38 1728302 39 1880022 40 2340182