# A331722 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 21
4 66
5 192
6 565
7 1579
8 4348
9 11582
10 30205
11 76736
12 191120
13 465920
14 1115572
15 2623885
16 6074353
17 13849021
18 31137381
19 69082779
20 151390617
21 327897173
22 702426987
23 1489108503
24 3125821257
25 6500086120
26 13396645887
27 27376083598
28 55490121271
29 111604327066
30 222798559100