# A216392 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 1 7 2 8 2 9 5 10 7 11 7 12 13 13 16 14 21 15 35 16 57 17 83 18 143 19 207 20 278 21 457 22 790 23 1064 24 1815 25 3468 26 5194 27 8226