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A042448 as a simple table

na(n)
027
155
2137
3192
4521
5713
61947
74607
8250725
9506057
101262839
111768896
124800631
136569527
1417939685
1542448897
162310180123
174662809143
1811635798409
1916298607552
2044233013513
2160531621065
22165296255643

[27,55,137,192,521,713,1947,4607,250725,506057,
 1262839,1768896,4800631,6569527,17939685,42448897,
 2310180123,4662809143,11635798409,16298607552,
 44233013513,60531621065,165296255643]