# A255451 (b-file synthesized from sequence entry)
0 1
1 5
2 21
3 85
4 333
5 1293
6 4997
7 19269
8 74237
9 285885
10 1100725
11 4237685
12 16314029
13 62803821
14 241772773
15 930737317
16 3582994525
17 13793193757
18 53098638101
19 204409869525
20 786901384973
21 3029275306957
22 11661574029893
23 44892686930437
24 172820009444029
25 665292226131325
26 2561125574008437
27 9859372988945461
28 37954888549712749