# A144026 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 6 5 10 6 18 7 32 8 58 9 103 10 184 11 329 12 588 13 1051 14 1878 15 3357 16 6000 17 10723 18 19164 19 34251 20 61214 21 109404 22 195530 23 349458 24 624562 25 1116237 26 1994974 27 3565481 28 6372340 29 11388848 30 20354510 31 36378224 32 65016314 33 116199213 34 207674912 35 371163175