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A010442 as a simple table

na(n)
10
21
34
47
59
610
713
816
919
1022
1125
1228
1331
1434
1536
1637
1740
1843
1946
2049
2152
2255
2358
2461
2563
2664
2767
2870
2973
3076
3179

[0,1,4,7,9,10,13,16,19,22,25,28,31,34,36,37,40,43,
 46,49,52,55,58,61,63,64,67,70,73,76,79]