# A116454 (b-file synthesized from sequence entry) 1 0 2 2 3 9 4 25 5 59 6 129 7 271 8 557 9 1131 10 2281 11 4583 12 9189 13 18403 14 36833 15 73695 16 147421 17 294875 18 589785 19 1179607 20 2359253 21 4718547 22 9437137 23 18874319 24 37748685 25 75497419 26 150994889 27 301989831 28 603979717 29 1207959491 30 2415919041