# A070859 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 25
4 89
5 317
6 1133
7 4069
8 14690
9 53312
10 194446
11 712538
12 2622437
13 9690475
14 35941065
15 133756845
16 499349550
17 1869614340
18 7018807650
19 26415146190
20 99642310170
21 376674137034
22 1426776136770
23 5414477628770
24 20583342248324