# A026388 (b-file synthesized from sequence entry) 1 1 2 5 3 24 4 114 5 541 6 2573 7 12275 8 58747 9 282003 10 1357407 11 6549906 12 31675020 13 153481299 14 745011075 15 3622111560 16 17635418730 17 85975792075 18 419644943495 19 2050493623760 20 10029194506990 21 49098707209695 22 240568930012575