# A170638 (b-file synthesized from sequence entry)
0 1
1 5
2 20
3 80
4 320
5 1280
6 5120
7 20480
8 81920
9 327680
10 1310720
11 5242880
12 20971520
13 83886080
14 335544320
15 1342177280
16 5368709120
17 21474836480
18 85899345920
19 343597383680
20 1374389534720
21 5497558138880
22 21990232555520
23 87960930222080