# A290380 (b-file synthesized from sequence entry)
3 1
4 4
5 12
6 36
7 105
8 306
9 889
10 2584
11 7515
12 21880
13 63778
14 186132
15 543855
16 1590876
17 4658580
18 13655472
19 40065243
20 117654876
21 345786396
22 1017040380
23 2993498739
24 8816790906
25 25984489545
26 76625467128
27 226085062525
28 667415280376
29 1971209865654
30 5824651789852