# A059420 (b-file synthesized from sequence entry)
1 1
2 20
3 616
4 28160
5 1805056
6 154918400
7 17171485696
8 2389096202240
9 407776690241536
10 83793407533383680
11 20407552701432856576
12 5813146553630295326720
13 1914890082050142493474816