# A047807 (b-file synthesized from sequence entry)
0 1
1 144
2 193104
3 16809408
4 397822032
5 4630076640
6 34416785088
7 187487524224
8 814891939920
9 2975535123408
10 9486534607200
11 27053022904128
12 70486183583424
13 169931012132448
14 384163644219264
15 820166796086400