# A344271 (b-file synthesized from sequence entry)
1 1
2 8
3 64
4 540
5 4096
6 33280
7 262144
8 2101304
9 16779232
10 134250496
11 1073741824
12 8590231296
13 68719476736
14 549757911040
15 4398046773248
16 35184389011270
17 281474976710656
18 2251799950016256
19 18014398509481984
20 144115189151809536
21 1152921504623624192
22 9223372045444710400
23 73786976294838206464