# A069921 (b-file synthesized from sequence entry)
0 1
1 5
2 10
3 29
4 73
5 194
6 505
7 1325
8 3466
9 9077
10 23761
11 62210
12 162865
13 426389
14 1116298
15 2922509
16 7651225
17 20031170
18 52442281
19 137295677
20 359444746
21 941038565
22 2463670945
23 6449974274
24 16886251873
25 44208781349
26 115740092170
27 303011495165
28 793294393321