# A034342 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 8 5 16 6 36 7 80 8 194 9 505 10 1439 11 4559 12 16580 13 70491 14 361339 15 2278637 16 17745061 17 166540680 18 1794040168 19 20987476447 20 254684454328 21 3107605995993 22 37418101305011 23 439995775004885 24 5025781692126252 25 55627454599068011 26 596148004493419480 27 6186335017615750870 28 62196701669630203157