# A114531 (b-file synthesized from sequence entry) 0 1 1 2 2 16 3 214 4 2856 5 33367 6 349895 7 3302046 8 28597720 9 229893484 10 1730841042 11 12296287989 12 82945782429 13 533994100001 14 3295058878301 15 19560004053448 16 112049953456910 17 621112646095769 18 3339451666010949 19 17451533356424837 20 88807504851447189 21 440798078343276894