# A171646 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 2 5 4 6 6 7 9 8 15 9 25 10 35 11 49 12 77 13 121 14 165 15 225 16 330 17 484 18 660 19 900 20 1260 21 1764 22 2352 23 3136 24 4312 25 5929 26 7777 27 10201 28 13635 29 18225 30 23760 31 30976 32 40656 33 53361 34 68607 35 88209 36 114345 37 148225 38 188650 39 240100 40 307230