# A026380 (b-file synthesized from sequence entry)
0 1
1 3
2 4
3 11
4 17
5 45
6 75
7 195
8 339
9 873
10 1558
11 3989
12 7247
13 18483
14 34016
15 86515
16 160795
17 408105
18 764388
19 1936881
20 3650571
21 9238023
22 17501619
23 44241261
24 84179877
25 212601015
26 406020930
27 1024642875
28 1963073865
29 4950790605