# A150318 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 21
4 91
5 327
6 1470
7 5619
8 26332
9 105906
10 501653
11 2068164
12 9957046
13 42029744
14 203306113
15 869727663
16 4241761211
17 18392828052
18 89932093568
19 393252647823
20 1932001726311
21 8522247776331
22 41933529445336
23 186050774102401
24 918221288804398
25 4098842350288830
26 20249781548100668
27 90779623979503067