# A215756 (b-file synthesized from sequence entry) 0 1 1 24 2 145 3 459 4 1063 5 1522 6 2585 7 9277 8 11862 9 21139 10 33001 11 318148 12 351149 13 1371595 14 1722744 15 3094339 16 4817083 17 22362671 18 27179754 19 103901933 20 131081687 21 3643107482 22 3774189169 23 14965674989 24 78602564114 25 93568239103 26 265739042320 27 890785366063 28 37678724416966 29 339999305118757 30 377678029535723