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A069940 as a simple table

na(n)
00
11
24
39
416
525
636
749
864
981
101
113
127
1313
1421
1531
1643
1757
1873
1991
204
217
2212
2319
2428
2539
2652
2767
2884
29103
309
3113
3219
3327
3437
3549
3663
3779
3897
39117
4016
4121
4228
4337
4448
4561
4676
4793
48112
49133
5025
5131
5239
5349
5461
5575
5691
57109
58129
59151
6036
6143
6252
6363
6476
6591
66108
67127

[0,1,4,9,16,25,36,49,64,81,1,3,7,13,21,31,43,57,
 73,91,4,7,12,19,28,39,52,67,84,103,9,13,19,27,37,
 49,63,79,97,117,16,21,28,37,48,61,76,93,112,133,
 25,31,39,49,61,75,91,109,129,151,36,43,52,63,76,
 91,108,127]