# A335949 (b-file synthesized from sequence entry) 0 1 1 1 2 12 3 4 4 240 5 48 6 1344 7 192 8 3840 9 1280 10 33792 11 3072 12 5591040 13 430080 14 245760 15 49152 16 16711680 17 983040 18 522977280 19 27525120 20 1211105280 21 173015040 22 1447034880 23 62914560 24 22900899840 25 4580179968 26 1409286144 27 469762048 28 116769423360 29 4026531840 30 7689065201664