# A374681 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 7 5 14 6 27 7 50 8 96 9 185 10 353 11 672 12 1289 13 2466 14 4722 15 9052 16 17342 17 33244 18 63767 19 122325 20 234727 21 450553 22 864975 23 1660951 24 3190089 25 6128033