# A121662 (b-file synthesized from sequence entry) 1 1 2 4 3 2 4 15 5 9 6 3 7 64 8 40 9 16 10 4 11 325 12 205 13 85 14 25 15 5 16 1956 17 1236 18 516 19 156 20 36 21 6 22 13699 23 8659 24 3619 25 1099 26 259 27 49 28 7 29 109600 30 69280 31 28960 32 8800 33 2080 34 400 35 64 36 8 37 986409 38 623529 39 260649 40 79209 41 18729 42 3609 43 585 44 81 45 9 46 9864100 47 6235300 48 2606500 49 792100 50 187300 51 36100 52 5860 53 820 54 100 55 10