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A304601 as a simple table

na(n)
116
222
353
4179
5560
61726
75205
815474
946577
10140882
11425811
121284730
133876203
1411701804
1535329457
16106648194
17321916587
18971745234
192933418071
208855071730
2126730426635
2280690036458
23243576592865
24735277676028
252219559525935

[16,22,53,179,560,1726,5205,15474,46577,140882,
 425811,1284730,3876203,11701804,35329457,
 106648194,321916587,971745234,2933418071,
 8855071730,26730426635,80690036458,243576592865,
 735277676028,2219559525935]