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A065577 as a simple table

na(n)
12
26
328
4127
5810
65402
738807
8291400
92274205
1018200488
11149091160
121243722370
1310533150855
1490350630388

[2,6,28,127,810,5402,38807,291400,2274205,
 18200488,149091160,1243722370,10533150855,
 90350630388]