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A003998 as a simple table

na(n)
1216
2217
3224
4225
5540
6559
7560
8567
9568
10728
11729
12736
13737
14756
15757
16764
17793
18801
19820
20828
21854
22855
23862
24863
25881
26882
27889
28890
29918
30919
31926
32927
33945
34946
35953
36954
37980
38981
391008
401009
411036
421044
431045
441071
451072
461073
471079
481080

[216,217,224,225,540,559,560,567,568,728,729,736,
 737,756,757,764,793,801,820,828,854,855,862,863,
 881,882,889,890,918,919,926,927,945,946,953,954,
 980,981,1008,1009,1036,1044,1045,1071,1072,1073,
 1079,1080]