# A024475 (b-file synthesized from sequence entry) 1 2 2 5 3 22 4 31 5 71 6 94 7 185 8 225 9 403 10 466 11 806 12 924 13 1556 14 1738 15 2883 16 3220 17 5289 18 5815 19 9499 20 10290 21 16749 22 18188 23 29539 24 31758 25 51504 26 54798 27 88794 28 94701 29 153368 30 162224 31 262633 32 278691 33 451089 34 475809 35 770043 36 806725 37 1305486 38 1371279 39 2218964