# A121853 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 2
4 2
5 4
6 8
7 24
8 24
9 48
10 96
11 288
12 576
13 1728
14 5184
15 20736
16 20736
17 41472
18 82944
19 248832
20 497664
21 1492992
22 4478976
23 17915904
24 35831808
25 107495424
26 322486272
27 1289945088
28 3869835264
29 15479341056
30 61917364224
31 309586821120