# A084568 (b-file synthesized from sequence entry) 0 1 1 5 2 8 3 20 4 32 5 80 6 128 7 320 8 512 9 1280 10 2048 11 5120 12 8192 13 20480 14 32768 15 81920 16 131072 17 327680 18 524288 19 1310720 20 2097152 21 5242880 22 8388608 23 20971520 24 33554432 25 83886080 26 134217728 27 335544320 28 536870912 29 1342177280 30 2147483648