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A049385 as a simple table

na(n)
11
26
31
466
518
61
71056
8372
936
101
1122176
129240
131200
1460
151
16576576
17271656
1842840
192940
2090
211
2217873856
239269568
241685376
25142800
266090
27126
281
29643458816
30360847872
3173313856
327254576
33386400
3411256
35168
361
3726381811456
3815799069440

[1,6,1,66,18,1,1056,372,36,1,22176,9240,1200,60,1,
 576576,271656,42840,2940,90,1,17873856,9269568,
 1685376,142800,6090,126,1,643458816,360847872,
 73313856,7254576,386400,11256,168,1,26381811456,
 15799069440]