# A303928 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 29
4 312
5 4454
6 78649
7 1644280
8 39580036
9 1076460972
10 32628557331
11 1090654903233
12 39861817143230
13 1581648436369772
14 67718096677762406
15 3112120229328860775
16 152815413664021339930
17 7985028281346030147672
18 442406826626726978612624
19 25906474516335623637923581
20 1598761621228278791567817906