# A211420 (b-file synthesized from sequence entry)
0 1
1 140
2 60060
3 29745716
4 15628090140
5 8480843582640
6 4697400936504900
7 2638798257262351800
8 1497753729733989900060
9 856840435680656569701776
10 493243073668546377605912560
11 285369375758780754651194529300
12 165789876049841088844342275759300