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A010456 as a simple table

na(n)
10
21
34
45
56
69
711
816
919
1020
1124
1225
1326
1430
1535
1636
1739
1844
1945
2049
2154
2255
2361
2464
2566
2674
2776
2880
2981
3085

[0,1,4,5,6,9,11,16,19,20,24,25,26,30,35,36,39,44,
 45,49,54,55,61,64,66,74,76,80,81,85]