# A071837 (b-file synthesized from sequence entry) 1 4 2 27 3 72 4 108 5 800 6 3125 7 12500 8 247808 9 823543 10 22579200 11 37879808 12 190512000 13 266716800 14 428652000 15 529200000 16 600112800 17 868020300 18 1190700000 19 1234800000 20 1452124800 21 2420208000 22 2679075000 23 3267280800 24 3307500000 25 4984012800 26 6994132992 27 7351381800 28 7441875000 29 7717500000 30 9376762500