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A206919 as a simple table

na(n)
00
11
21
34
44
59
69
716
816
925
1025
1125
1225
1325
1425
1540
1640
1757
1857
1957
2057
2178
2278
2378
2478
2578
2678
27105
28105
29105
30105
31136
32136
33169
34169
35169
36169
37169
38169
39169
40169
41169
42169
43169
44169
45214
46214
47214
48214
49214
50214
51265
52265
53265
54265
55265
56265
57265
58265

[0,1,1,4,4,9,9,16,16,25,25,25,25,25,25,40,40,57,
 57,57,57,78,78,78,78,78,78,105,105,105,105,136,
 136,169,169,169,169,169,169,169,169,169,169,169,
 169,214,214,214,214,214,214,265,265,265,265,265,
 265,265,265]