# A248028 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 8 4 65 5 957 6 22512 7 773838 8 36561289 9 2271696241 10 179538792358 11 17584290721868 12 2090031277816649 13 296326507395472205 14 49400463740287289892 15 9566059122999739401954 16 2129221864475839211318769 17 539805407803681202368358785 18 154636541536285163968515043306 19 49702496963149041682740769491568