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”).

A187082 as a simple table

na(n)
13
26
39
46
554
627
70
8180
9324
1081
110
12360
132160
141620
15243
160
17360
189720
1917820
207290
21729
220
230
2430240
25136080
26119070
2730618
282187
290
300
3160480
32771120
331360800
34694008
35122472
366561
370
380
3960480
403265920
4111838960
4211022480
433674160
44472392
4519683

[3,6,9,6,54,27,0,180,324,81,0,360,2160,1620,243,0,
 360,9720,17820,7290,729,0,0,30240,136080,119070,
 30618,2187,0,0,60480,771120,1360800,694008,122472,
 6561,0,0,60480,3265920,11838960,11022480,3674160,
 472392,19683]