# A277638 (b-file synthesized from sequence entry)
0 1
1 4
2 37
3 520
4 8803
5 165292
6 3320023
7 69943804
8 1526981575
9 34271322316
10 786371041603
11 18372739163632
12 435772652437381
13 10468369504009060
14 254238148448959729
15 6233226769739934964
16 154092763036678601551
17 3837301178450916902428