# A018065 (b-file synthesized from sequence entry) 0 1 1 2 2 3 3 5 4 7 5 12 6 19 7 31 8 49 9 80 10 130 11 211 12 343 13 558 14 908 15 1477 16 2401 17 3906 18 6353 19 10333 20 16807 21 27338 22 44468 23 72330 24 117649 25 191366 26 311270 27 506305 28 823543 29 1339556 30 2178890 31 3544132 32 5764801 33 9376891