# A024481 (b-file synthesized from sequence entry) 1 1 2 2 3 7 4 11 5 27 6 44 7 96 8 155 9 307 10 497 11 947 12 1532 13 2752 14 4453 15 7783 16 12593 17 21421 18 34660 19 58128 20 94053 21 156357 22 252991 23 416571 24 674026 25 1104546 26 1787193 27 2916749 28 4719399 29 7678589