# A158415 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 3 5 5 6 8 7 13 8 20 9 33 10 54 11 91 12 154 13 264 14 455 15 791 16 1379 17 2424 18 4277 19 7588 20 13513 21 24162 22 43336 23 77978 24 140683 25 254487 26 461409 27 838433 28 1526536