# A268208 (b-file synthesized from sequence entry) 0 1 1 3 2 12 3 52 4 236 5 1108 6 5340 7 26276 8 131484 9 667108 10 3424108 11 17748564 12 92776716 13 488527284 14 2588907708 15 13797337668 16 73901315644 17 397609958596 18 2147904635340 19 11645489540468 20 63349140877356 21 345651184335892 22 1891209255293852