# A294781 (b-file synthesized from sequence entry)
0 1
1 5
2 17
3 53
4 153
5 421
6 1125
7 2937
8 7537
9 19093
10 47881
11 119133
12 294585
13 724869
14 1776717
15 4341425
16 10582177
17 25743269
18 62527553
19 151682821
20 367594457
21 890137893
22 2154129717
23 5210373929
24 12597758737
25 30449544885
26 73580024633
27 177767884973
28 429416696185
29 1037172672005
30 2504846014621