login

A220500 as a simple table

na(n)
00
11
25
313
429
551
675
799
8135
9175
10207
11251
12315
13409
14481
15537
16613
17685
18717
19765
20845
21957
221097
231237
241377
251545
261665
271797
281965
292203
302371
312491
322647
332783
342815
352863
362943
373055
383195
393339
403503
413727
423943
434199
444471
454839
465163
475479
485759
496055
506215
516365
526597
536917
547321
557753
568161

[0,1,5,13,29,51,75,99,135,175,207,251,315,409,481,
 537,613,685,717,765,845,957,1097,1237,1377,1545,
 1665,1797,1965,2203,2371,2491,2647,2783,2815,2863,
 2943,3055,3195,3339,3503,3727,3943,4199,4471,4839,
 5163,5479,5759,6055,6215,6365,6597,6917,7321,7753,
 8161]