# A120453 (b-file synthesized from sequence entry) 1 2 2 4 3 6 4 12 5 16 6 30 7 48 8 60 9 168 10 240 11 256 12 510 13 768 14 1020 15 3840 16 4080 17 14880 18 65280 19 65536 20 131070 21 196608 22 262140 23 983040 24 1048560 25 16711680 26 16776960 27 4294901760 28 4294967296 29 7608944640 30 8589934590 31 12884901888 32 17179869180