# A149564 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 13
4 59
5 197
6 915
7 3325
8 15733
9 60317
10 288181
11 1145295
12 5509487
13 22451225
14 108586043
15 450783555
16 2189360465
17 9221321187
18 44933067763
19 191465798107
20 935415358939
21 4024318272885
22 19703027140807
23 85451890605353
24 419111032544665
25 1830233351140337
26 8989990703932397
27 39492923551242959