# A169973 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 2 5 4 6 7 7 13 8 26 9 51 10 52 11 103 12 154 13 205 14 256 15 308 16 359 17 410 18 461 19 512 20 2408 21 4814 22 20276 23 70298 24 189440 25 427728 26 855452 27 1583464 28 2833460 29 5127424 30 10197920 31 20395832 32 42204112 33 86360168 34 173465856 35 345264448 36 687194480