# A149498 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 9
4 45
5 109
6 509
7 1517
8 6757
9 22461
10 98997
11 345653
12 1529269
13 5506201
14 24429845
15 90301037
16 400891885
17 1513502725
18 6723798125
19 25795029197
20 114713713765
21 445819303429
22 1984246519061
23 7797336046153
24 34724021189789
25 137746829186609
26 613736119949989
27 2454296224465553
28 10940223238022509