# A149758 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 19
4 69
5 277
6 1185
7 5009
8 21325
9 92733
10 408629
11 1807995
12 8038887
13 35981881
14 162014757
15 732494001
16 3321753179
17 15111904573
18 68984336243
19 315806352009
20 1448850054545
21 6660481232055
22 30684420675499
23 141639855244171
24 654874542763787
25 3032247286729153
26 14060715339443201
27 65292539049162537