# A089380 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 1
4 2
5 6
6 18
7 50
8 133
9 349
10 919
11 2443
12 6559
13 17759
14 48417
15 132765
16 365883
17 1012827
18 2814975
19 7852359
20 21977172
21 61697208
22 173688720
23 490222392
24 1386896799
25 3932313671
26 11172152779
27 31801604227
28 90683754826
29 259017103918