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”).

A221684 as a simple table

na(n)
116
240
368
4100
5133
6166
7199
8232
9265
10298
11331
12364
13397
14430
15463
16496
17529
18562
19595
20628
21661
22694
23727
24760
25793
26826
27859
28892
29925
30958
31991
321024
331057
341090
351123
361156
371189
381222
391255
401288
411321
421354
431387
441420
451453
461486
471519
481552
491585

[16,40,68,100,133,166,199,232,265,298,331,364,397,
 430,463,496,529,562,595,628,661,694,727,760,793,
 826,859,892,925,958,991,1024,1057,1090,1123,1156,
 1189,1222,1255,1288,1321,1354,1387,1420,1453,1486,
 1519,1552,1585]