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A081121 as a simple table

na(n)
13
25
36
49
510
612
714
816
917
1021
1122
1224
1329
1430
1531
1632
1733
1834
1936
2037
2138
2241
2342
2443
2546
2650
2751
2852
2957
3058
3159
3262
3365
3466
3568
3669
3770
3873
3975
4077
4178
4280
4382
4484
4585
4686
4788
4890
4991
5092
5193
5294
5396
5497
5598
5699

[3,5,6,9,10,12,14,16,17,21,22,24,29,30,31,32,33,
 34,36,37,38,41,42,43,46,50,51,52,57,58,59,62,65,
 66,68,69,70,73,75,77,78,80,82,84,85,86,88,90,91,
 92,93,94,96,97,98,99]