# A049032 (b-file synthesized from sequence entry) 1 0 2 0 3 1 4 4 5 10 6 20 7 40 8 70 9 112 10 168 11 252 12 360 13 495 14 660 15 880 16 1144 17 1456 18 1820 19 2275 20 2800 21 3400 22 4080 23 4896 24 5814 25 6840 26 7980 27 9310 28 10780 29 12397 30 14168 31 16192 32 18400 33 20800 34 23400 35 26325 36 29484 37 32886 38 36540 39 40600 40 44950