# A193418 (b-file synthesized from sequence entry) 1 1 2 3 3 8 4 23 5 69 6 206 7 616 8 1846 9 5537 10 16609 11 49824 12 149469 13 448405 14 1345212 15 4035632 16 12106892 17 36320673 18 108962015 19 326886040 20 980658115 21 2941974341 22 8825923018 23 26477769048 24 79433307138 25 238299921409 26 714899764221 27 2144699292656