# A026956 (b-file synthesized from sequence entry)
0 1
1 2
2 11
3 52
4 200
5 742
6 2752
7 10278
8 38670
9 146426
10 557408
11 2131318
12 8179646
13 31491202
14 121568150
15 470404274
16 1823968074
17 7085220834
18 27567196704
19 107414120214
20 419080195374
21 1636990646274
22 6401210885934
23 25055584929954
24 98160790785714
25 384885441746202
26 1510279309724502