# A165648 (b-file synthesized from sequence entry)
1 0
2 1
3 2
4 4
5 7
6 13
7 23
8 41
9 77
10 149
11 397
12 1246
13 21135
14 430933
15 51156773
16 3044120326
17 1704554902881
18 446193132548644
19 650868899188542416
20 431014163502227412545
21 2886915606822315071638459
22 8841362446647790021087061250
23 152946959203764346079534774815394
24 1208238394473886999896406262410758886