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”).

A212208 as a simple table

na(n)
11
20
31
4-6
511
6-6
70
81
9-20
10174
11-859
122627
13-5082
146048
15-4023
161134
170
181
19-42
20825
21-10054
2285011
23-528254
242491825
25-9084089
2625795983
27-57031153
2897292827
29-125639547
30118705077
31-77301243
3230931875
33-5709042
340
351
36-72
372492
38-55183
39877812

[1,0,1,-6,11,-6,0,1,-20,174,-859,2627,-5082,6048,
 -4023,1134,0,1,-42,825,-10054,85011,-528254,
 2491825,-9084089,25795983,-57031153,97292827,
 -125639547,118705077,-77301243,30931875,-5709042,
 0,1,-72,2492,-55183,877812]