login

A054375 as a simple table

na(n)
10
2-1
30
40
5-4
60
71
816
964
100
110
12-16
130
144096
150
16-1
170
18-4096
1965536
20-1048576
210
220
23-64
240
25262144
260
27-1073741824
280
291
30256
3116384
3216777216
33268435456
3468719476736
354398046511104
360
370
38-256
390
4016777216
410
42-4398046511104
430
4472057594037927936

[0,-1,0,0,-4,0,1,16,64,0,0,-16,0,4096,0,-1,0,
 -4096,65536,-1048576,0,0,-64,0,262144,0,
 -1073741824,0,1,256,16384,16777216,268435456,
 68719476736,4398046511104,0,0,-256,0,16777216,0,
 -4398046511104,0,72057594037927936]