# A268610 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 6
5 9
6 18
7 36
8 72
9 99
10 198
11 396
12 792
13 999
14 1998
15 3996
16 7992
17 9999
18 10989
19 19998
20 21978
21 39996
22 43956
23 76923
24 99999
25 199998