URL: https://oeis.org/A375177/b375177.txt
# A375177 (b-file synthesized from sequence entry)
1 1
2 5
3 26
4 134
5 670
6 3262
7 15540
8 72732
9 335478
10 1528670
11 6894316
12 30820660
13 136736236
14 602610764
15 2640266600
16 11508115320
17 49928451750
18 215717144670
19 928515985980
20 3983029119300
21 17032882625220
22 72631992447300
23 308911087394520
24 1310670689270280
25 5548646191175100
