# A149163 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 9
4 40
5 119
6 539
7 1841
8 8364
9 30955
10 141649
11 549875
12 2542866
13 10164631
14 47527100
15 193802541
16 914717352
17 3788393117
18 18005282017
19 75561381227
20 360910284426
21 1531898228495
22 7344956490924
23 31475455042689
24 151413448157436
25 654028472348391
26 3155668890434889
27 13722284292332989