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A069981 as a simple table

na(n)
00
10
20
31
43
53
67
76
812
910
1018
1115
1225
1321
1433
1528
1642
1736
1852
1945
2063
2155
2275
2366
2488
2578
26102
2791
28117
29105
30133
31120
32150
33136
34168
35153
36187
37171
38207
39190
40228
41210
42250
43231
44273
45253
46297
47276
48322
49300
50348
51325
52375
53351
54403
55378
56432

[0,0,0,1,3,3,7,6,12,10,18,15,25,21,33,28,42,36,52,
 45,63,55,75,66,88,78,102,91,117,105,133,120,150,
 136,168,153,187,171,207,190,228,210,250,231,273,
 253,297,276,322,300,348,325,375,351,403,378,432]