# A074358 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 4
4 20
5 80
6 288
7 976
8 3184
9 10112
10 31488
11 96576
12 292672
13 878336
14 2614784
15 7731456
16 22728448
17 66482176
18 193617920
19 561718272
20 1624101888
21 4681535488
22 13457924096
23 38592008192
24 110419341312
25 315287830528
26 898583560192