# A091095 (b-file synthesized from sequence entry)
0 1
1 4
2 -8
3 64
4 -128
5 1024
6 -2048
7 16384
8 -32768
9 262144
10 -524288
11 4194304
12 -8388608
13 67108864
14 -134217728
15 1073741824
16 -2147483648
17 17179869184
18 -34359738368
19 274877906944
20 -549755813888
21 4398046511104
22 -8796093022208
23 70368744177664