# A077832 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 23 4 73 5 236 6 760 7 2447 8 7882 9 25385 10 81757 11 263315 12 848056 13 2731328 14 8796769 15 28331690 16 91247671 17 293880719 18 946499521 19 3048384212 20 9817909144 21 31620469487 22 101839819042 23 327994773977 24 1056370413541 25 3402244606139 26 10957584774832 27 35291014608704