# A169283 (b-file synthesized from sequence entry)
0 1
1 30
2 870
3 25230
4 731670
5 21218430
6 615334470
7 17844699630
8 517496289270
9 15007392388830
10 435214379276070
11 12621216999006030
12 366015292971174870
13 10614443496164071230
14 307818861388758065670
15 8926746980273983904430