# A025101 (b-file synthesized from sequence entry) 1 2 2 3 3 11 4 18 5 44 6 71 7 155 8 251 9 497 10 804 11 1532 12 2479 13 4453 14 7205 15 12593 16 20376 17 34660 18 56081 19 94053 20 152181 21 252991 22 409348 23 674026 24 1090597 25 1787193 26 2891739 27 4719399 28 7636148