# A253711 (b-file synthesized from sequence entry)
1 1
2 2050
3 181246
4 4554746
5 57756371
6 473755052
7 2867080476
8 13850340492
9 56214660117
10 198578979742
11 626254969978
12 1796939330902
13 4759784085863
14 11772194010488
15 27434359794488
16 60688711622904
17 128214959758953
18 260009617974234
19 508294535087734
20 961379452201234
21 1764741869856955
22 3152422588924004
23 5492913065904980