# A019136 (b-file synthesized from sequence entry)
3 0
4 1
5 4
6 3
7 13
8 26
9 23
10 119
11 235
12 452
13 1323
14 3119
15 7328
16 19372
17 46983
18 119070
19 303686
20 769310
21 1975420
22 5113550
23 13189920
24 34395096
25 89652338
26 234687224
27 615882224
28 1620322823
29 4269645213
30 11281746619
31 29843058869