# A216391 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 2 6 3 7 3 8 3 9 5 10 5 11 5 12 8 13 19 14 21 15 34 16 55 17 81 18 130 19 221 20 407 21 515 22 850 23 1787 24 2287 25 3968 26 8176 27 12332