# A072336 (b-file synthesized from sequence entry)
0 1
1 3
2 15
3 61
4 250
5 966
6 3691
7 13708
8 50198
9 180756
10 642883
11 2259194
12 7859454
13 27086808
14 92579267
15 314011481
16 1057679231
17 3539727315
18 11776328715
19 38963355007
20 128255099092
21 420155031109
22 1370225125574
23 4449779889260
24 14393128980829
25 46380744221539