# A217986 (b-file synthesized from sequence entry) 1 560 2 1000 3 10200 4 5670 5 63945 6 158400 7 322920 8 140800 9 1200420 10 889200 11 792064 12 4706352 13 6331446 14 12042800 15 1000350 16 8429960 17 101892288 18 129600900 19 365575680 20 340692480 21 264269250 22 304646400 23 511999488 24 118857024