# A027119 (b-file synthesized from sequence entry) 1 1 2 4 3 9 4 23 5 59 6 154 7 407 8 1088 9 2935 10 7980 11 21843 12 60139 13 166425 14 462638 15 1291245 16 3616923 17 10164335 18 28648092 19 80960915 20 229360649 21 651237509 22 1852936294 23 5282196109 24 15084862158 25 43150636493 26 123624304356 27 354689105733