# A156237 (b-file synthesized from sequence entry)
2 6
3 66
4 630
5 7140
6 103740
7 1272810
8 56812470
9 1722580860
10 48098217090
11 1850186768430
12 139261952960130
13 17743036637876550
14 741902728913225880
15 21549201398378163510
16 2378522762792139793830
17 351206814022419685159830