# A078160 (b-file synthesized from sequence entry)
1 1
2 2
3 4
4 8
5 20
6 52
7 140
8 400
9 1203
10 3808
11 12634
12 43771
13 157821
14 590518
15 2287070
16 9148286
17 37719353
18 160029667
19 697553152
20 3119552536
21 14295585635
22 67052240163
23 321571247089
24 1575370942644