# A217352 (b-file synthesized from sequence entry) 1 2 2 4 3 6 4 8 5 9 6 10 7 15 8 20 9 46 10 49 11 61 12 98 13 110 14 144 15 266 16 344 17 978 18 1692 19 1880 20 1924 21 3142 22 3220 23 4209 24 5708 25 7064 26 13465 27 13858 28 19474 29 22666 30 26807