# A057592 (b-file synthesized from sequence entry) 0 1 1 5 2 8 3 17 4 37 5 84 6 201 7 493 8 1240 9 3161 10 8141 11 21092 12 54865 13 143061 14 373608 15 976609 16 2554357 17 6683444 18 17491097 19 45781949 20 119841976 21 313723305 22 821294493 23 2150106052 24 5628936097 25 14736560549 26 38580516296 27 101004617393 28 264432735685 29 692292618516