# A150656 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 28
4 120
5 533
6 2431
7 11306
8 53313
9 253981
10 1219497
11 5892033
12 28610302
13 139489397
14 682344795
15 3347079833
16 16456433524
17 81069630699
18 400043687892
19 1976878885936
20 9781172827062
21 48447253861374
22 240190177910842
23 1191787510194140
24 5917756953017000
25 29403129583489506
26 146176214940053868