# A301270 (b-file synthesized from sequence entry)
4 4
5 20
6 144
7 1372
8 16384
9 236196
10 4000000
11 77948684
12 1719926784
13 42417997492
14 1157018619904
15 34599023437500
16 1125899906842624
17 39618312131623748
18 1499253470328324096
19 60724508119499193196
20 2621440000000000000000
21 120167769980326767578964
22 5829995856912430117421056
23 298461883710362842247633948
24 16079954871362414694843285504