# A145974 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 5
4 14
5 27
6 73
7 151
8 400
9 862
10 2254
11 4989
12 12932
13 29165
14 75135
15 171805
16 440620
17 1018240
18 2602600
19 6064810
20 15460920
21 36272270
22 92276210
23 217693425
24 552878074
25 1310422012
26 3323477928
27 7908572351
28 20034349880
29 47837048643
30 121063495921
31 289930092391
32 733118166228
33 1760303403020