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”).

A022663 as a simple table

na(n)
01
1-3
2-3
38
49
518
6-35
7-33
8-66
9-91
10216
11189
12386
13315
14333
15-1483
16-2268
17-2214
18-1883
19-456
20-801
2123032
2212186
2322665
2418622
25-20328
26-39549
27-78834
28-146838
29-249342
30-146662
3115678
32564771
33238159
341274913
351398063
361572593
371423266
38-833778
39-3484732
40-5261736
41-9671502

[1,-3,-3,8,9,18,-35,-33,-66,-91,216,189,386,315,
 333,-1483,-2268,-2214,-1883,-456,-801,23032,12186,
 22665,18622,-20328,-39549,-78834,-146838,-249342,
 -146662,15678,564771,238159,1274913,1398063,
 1572593,1423266,-833778,-3484732,-5261736,
 -9671502]