# A144756 (b-file synthesized from sequence entry)
0 1
1 3
2 33
3 627
4 16929
5 592515
6 25478145
7 1299385395
8 76663738305
9 5136470466435
10 385235284982625
11 31974528653557875
12 2909682107473766625
13 288058528639902895875
14 30822262564469609858625
15 3544560194914005133741875
16 435980903974422631450250625
17 57113498420649364719982831875