# A075927 (b-file synthesized from sequence entry) 0 7 1 25 2 42 3 75 4 385 5 642 6 1155 7 2184 8 4233 9 8330 10 16523 11 98305 12 163842 13 294915 14 557064 15 1081353 16 2129930 17 4227083 18 8421504 19 16810113 20 33587330 21 67141763 22 134250632 23 268468361 24 536903818 25 1073774731 26 6442450945 27 10737418242