login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A120582 as a simple table

na(n)
01
12
20
30
4-16
5-32
6-64
7-128
80
90
101024
112048
124096
138192
140
150
16-65536
17-131072
18-262144
19-524288
200
210
224194304
238388608
2416777216
2533554432
260
270
28-268435456
29-536870912
30-1073741824
31-2147483648
320
330
3417179869184
3534359738368
3668719476736
37137438953472
380
390
40-1099511627776

[1,2,0,0,-16,-32,-64,-128,0,0,1024,2048,4096,8192,
 0,0,-65536,-131072,-262144,-524288,0,0,4194304,
 8388608,16777216,33554432,0,0,-268435456,
 -536870912,-1073741824,-2147483648,0,0,
 17179869184,34359738368,68719476736,137438953472,
 0,0,-1099511627776]