# A164892 (b-file synthesized from sequence entry)
0 1
1 18
2 306
3 5202
4 88434
5 1503378
6 25557426
7 434476242
8 7386095961
9 125563628736
10 2134581644448
11 36287887206528
12 616894069776480
13 10487198969713728
14 178282378804864032
15 3030800377118109696
16 51523605347410047672