# A303555 (b-file synthesized from sequence entry) 1 2 2 4 3 6 4 8 5 12 6 30 7 16 8 24 9 60 10 210 11 32 12 48 13 120 14 420 15 2310 16 64 17 96 18 240 19 840 20 4620 21 30030 22 128 23 192 24 480 25 1680 26 9240 27 60060 28 510510 29 256 30 384 31 960 32 3360 33 18480 34 120120 35 1021020 36 9699690 37 512 38 768 39 1920 40 6720 41 36960 42 240240 43 2042040 44 19399380 45 223092870 46 1024 47 1536 48 3840 49 13440 50 73920 51 480480 52 4084080 53 38798760 54 446185740 55 6469693230