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”).

A025305 as a simple table

na(n)
11105
21625
31885
42125
52210
62405
72465
82665
93145
103250
113445
123485
133625
143770
153965
164225
174250
184420
194505
204625
214745
224810
234930
245125
255185
265330
275365
285785
295945
306205
316290
326305
336409
346500
356565
366625
376890
386970
397085
407225
417250
427345

[1105,1625,1885,2125,2210,2405,2465,2665,3145,
 3250,3445,3485,3625,3770,3965,4225,4250,4420,4505,
 4625,4745,4810,4930,5125,5185,5330,5365,5785,5945,
 6205,6290,6305,6409,6500,6565,6625,6890,6970,7085,
 7225,7250,7345]