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A010998 as a simple table

n a(n)
45 1
46 46
47 1081
48 17296
49 211876
50 2118760
51 18009460
52 133784560
53 886322710
54 5317936260
55 29248649430
56 148902215280
57 707285522580
58 3155581562280
59 13298522298180
60 53194089192720
61 202802465047245
62 739632519584070
63 2588713818544245
64 8719878125622720
65 28339603908273840

[1,46,1081,17296,211876,2118760,18009460,
 133784560,886322710,5317936260,29248649430,
 148902215280,707285522580,3155581562280,
 13298522298180,53194089192720,202802465047245,
 739632519584070,2588713818544245,8719878125622720,
 28339603908273840]

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Last modified June 3 23:56 EDT 2020. Contains 334807 sequences. (Running on oeis4.)