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”).

A219765 as a simple table

na(n)
01
10
21
30
4-1
52
60
75
8-12
98
100
11-79
12208
13-192
1464
150
163377
17-9520
1810240
19-5120
201024
210
22-362431
231079744
24-1282560
25778240
26-245760
2732768
280
2993473345
30-291615296
31372893696
32-255754240
33100925440
34-22020096
352097152
360
37-56272471039
38182582658048
39-247557029888
40185511968768
41-84263567360
4223488102400
43-3758096384
44268435456

[1,0,1,0,-1,2,0,5,-12,8,0,-79,208,-192,64,0,3377,
 -9520,10240,-5120,1024,0,-362431,1079744,-1282560,
 778240,-245760,32768,0,93473345,-291615296,
 372893696,-255754240,100925440,-22020096,2097152,
 0,-56272471039,182582658048,-247557029888,
 185511968768,-84263567360,23488102400,-3758096384,
 268435456]