# A085840 (b-file synthesized from sequence entry) 0 1 1 1 2 12 3 1 4 40 5 80 6 1 7 84 8 560 9 448 10 1 11 144 12 2016 13 5376 14 2304 15 1 16 220 17 5280 18 29568 19 42240 20 11264 21 1 22 312 23 11440 24 109824 25 329472 26 292864 27 53248 28 1 29 420 30 21840 31 320320 32 1647360 33 3075072 34 1863680 35 245760