# A026887 (b-file synthesized from sequence entry) 0 1 1 3 2 11 3 44 4 186 5 819 6 3725 7 17402 8 83156 9 405116 10 2006696 11 10083578 12 51303146 13 263851841 14 1369807435 15 7170160392 16 37803475750 17 200584271466 18 1070306614530 19 5739790997296 20 30919312935436 21 167228980869678 22 907759276349466