# A259795 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 13 4 218 5 5082 6 140549 7 4318937 8 142230196 9 4899174096 10 173759831765 11 6275666535508 12 229029623773326 13 8400986623582879 14 308552577080828413 15 11315799255444002331 16 413526899811283611529 17 15035521464541449037361 18 543292158617220114038102 19 19493012206795963934830852 20 694033371089826655280448205 21 24509565267500567956406898725