# A074493 (b-file synthesized from sequence entry)
1 1
2 5
3 25
4 49
5 125
6 251
7 499
8 751
9 1249
10 4999
11 18229
12 31249
13 49999
14 281249
15 4218751
16 4999999
17 9590417
18 31622777
19 68171507
20 74218751
21 574218751
22 5740883989
23 8829261293