# A073965 (b-file synthesized from sequence entry)
1 0
2 0
3 6
4 30
5 150
6 650
7 3150
8 15500
9 78000
10 390000
11 1952500
12 9762500
13 48831250
14 244156250
15 1220781250
16 6103593750
17 30517656250
18 152587500000
19 762939062500
20 3814695312500
21 19073484375000
22 95367421875000
23 476837167968750
24 2384185839843750
25 11920929199218750