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A005712 as a simple table

na(n)
21
36
419
545
690
7161
8266
9414
10615
11880
121221
131651
142184
152835
163620
174556
185661
196954
208455
2110185
2212166
2314421
2416974
2519850
2623075
2726676
2830681
2935119
3040020
3145415
3251336
3357816
3464889
3572590
3680955
3790021
3899826
39110409
40121810
41134070

[1,6,19,45,90,161,266,414,615,880,1221,1651,2184,
 2835,3620,4556,5661,6954,8455,10185,12166,14421,
 16974,19850,23075,26676,30681,35119,40020,45415,
 51336,57816,64889,72590,80955,90021,99826,110409,
 121810,134070]