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A228411 as a simple table

na(n)
01
12
226
3476
410150
5236060
65807076
7148581048
83913759878
9105424703020
102890693930124
1180413849328904
122263896023453532
1364381391412987672
141846729385267277960
1553367451809002583408
161552274439636853988550
1745408989873571191613900
181335107241077282661195900

[1,2,26,476,10150,236060,5807076,148581048,
 3913759878,105424703020,2890693930124,
 80413849328904,2263896023453532,64381391412987672,
 1846729385267277960,53367451809002583408,
 1552274439636853988550,45408989873571191613900,
 1335107241077282661195900]