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A007818 as a simple table

na(n)
10
21
32
44
55
67
79
812
913
1015
1117
1220
1321
1423
1525
1628
1730
1833
1934
2036
2138
2241
2343
2446
2548
2651
2754
2855
2957
3059
3162
3264
3367
3469
3572
3675
3776
3878
3980
4083
4185
4288
4390
4493
4596
4698
47101
48104
49105
50107
51109
52112
53114
54117
55119
56122
57125
58127
59130
60133
61135
62138
63141

[0,1,2,4,5,7,9,12,13,15,17,20,21,23,25,28,30,33,
 34,36,38,41,43,46,48,51,54,55,57,59,62,64,67,69,
 72,75,76,78,80,83,85,88,90,93,96,98,101,104,105,
 107,109,112,114,117,119,122,125,127,130,133,135,
 138,141]