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”).

A064188 as a simple table

na(n)
01
11
23
34
48
512
618
727
840
958
1083
11118
12195
13242
14-1387
15-338
1675876
1744491
18-3099115
19-2028539
20129829195
2191749709
22-5687984421
23-4236497556
24263653557716
25204087552038
26-12979768392096
27-10348229609729
28679042377362009
29554161706136054
30-37712174126966326

[1,1,3,4,8,12,18,27,40,58,83,118,195,242,-1387,
 -338,75876,44491,-3099115,-2028539,129829195,
 91749709,-5687984421,-4236497556,263653557716,
 204087552038,-12979768392096,-10348229609729,
 679042377362009,554161706136054,
 -37712174126966326]