# A068388 (b-file synthesized from sequence entry) 1 1 2 5 3 9 4 9 5 47 6 54 7 171 8 867 9 3056 10 28687 11 133134 12 542005 13 563497 14 1046686 15 1955619 16 2057281 17 42760619 18 661780137 19 1109113993 20 6460565976 21 8523453296 22 34406061218 23 64402180149 24 1607033374515 25 10943963720662 26 124655149151970