# A069840 (b-file synthesized from sequence entry) 4 16 5 80 6 666 7 6588 8 80886 9 1146916 10 18583160 11 337808300 12 6812539360 13 150922350288 14 3643698427650 15 95221941543232 16 2678117152113428 17 80658585770586368 18 2590036811212597862 19 88333886984966359596 20 3188853320209605353376 21 121480126482182314239216 22 4870248707151384381179450