# A019486 (b-file synthesized from sequence entry)
0 2
1 5
2 12
3 28
4 65
5 150
6 346
7 795
8 1826
9 4192
10 9621
11 22078
12 50660
13 116239
14 266704
15 611930
16 1404013
17 3221358
18 7391048
19 16957921
20 38908004
21 89269924
22 204819503
23 469934590
24 1078210352
25 2473828397
26 5675911794
27 13022719964