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”).

A117573 as a simple table

na(n)
01
11
24
35
48
511
615
718
824
928
1034
1140
1247
1353
1462
1569
1678
1787
1897
19106
20118
21128
22140
23152
24165
25177
26192
27205
28220
29235
30251
31266
32284
33300
34318
35336
36355
37373
38394
39413
40434
41455
42477
43498
44522
45544
46568
47592
48617
49641
50668

[1,1,4,5,8,11,15,18,24,28,34,40,47,53,62,69,78,87,
 97,106,118,128,140,152,165,177,192,205,220,235,
 251,266,284,300,318,336,355,373,394,413,434,455,
 477,498,522,544,568,592,617,641,668]