# A104168 (b-file synthesized from sequence entry) 2 4 3 27 4 636 5 378 6 729 7 648 8 576 9 2688 10 17496 11 44928 12 75776 13 168960 14 765952 15 319488 16 958464 17 5537792 18 5963776 19 2883584 20 5767168 21 7077888 22 279969792 23 544997376 24 778567680 25 2579496960 26 4567597056 27 3875536896 28 22749904896 29 60699967488 30 87509958656 31 164886478848