# A054596 (b-file synthesized from sequence entry)
3 1
4 3
5 37
6 435
7 6996
8 134428
9 3094785
10 82061325
11 2473950880
12 83606473566
13 3132506471139
14 128918727009163
15 5784184164416490
16 281105943314654760
17 14716271275161095761
18 825944690635111256697
19 49490362937885427672552