# A173581 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 4 5 6 6 12 7 16 8 48 9 64 10 81 11 162 12 192 13 270 14 324 15 750 16 1029 17 1296 18 1512 19 2058 20 4096 21 4116 22 5184 23 12288 24 16464 25 65536 26 65856 27 196608 28 262144 29 331776 30 786432 31 2100000 32 4214784 33 5308416 34 21233664 35 67436544 36 269746176 37 1073741824 38 3221225472