# A164777 (b-file synthesized from sequence entry)
0 1
1 9
2 72
3 576
4 4608
5 36864
6 294912
7 2359296
8 18874332
9 150994368
10 1207952676
11 9663603264
12 77308680960
13 618468286464
14 4947737001984
15 39581821698048
16 316653979043052
17 2533227076022832
18 20265778557681300
19 162125924058011088