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”).

A286123 as a simple table

na(n)
01
12
22
30
44
50
656
70
8208
90
10608
110
123776
13512
14896
1523552
1616640
1783968
1885504
19348160
203072
211236992
2214336
232867200
242207744
251212416
264251648
272818048
2827312128
291441792
30229376
311310720
32402718720
332621440
343222142976
355242880
364980736
3735651584

[1,2,2,0,4,0,56,0,208,0,608,0,3776,512,896,23552,
 16640,83968,85504,348160,3072,1236992,14336,
 2867200,2207744,1212416,4251648,2818048,27312128,
 1441792,229376,1310720,402718720,2621440,
 3222142976,5242880,4980736,35651584]