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A081540 as a simple table

n a(n)
1 0
2 3
3 48
4 615
5 7404
6 86415
7 987648
8 11111103
9 123456780
10 12469134879
11 1259259166920
12 127160484583143
13 12839505247415568
14 1296296203651668195
15 130864188256177941024
16 13209875614718906234055
17 1333333240382001836547288
18 134567891929211304968880723
19 13580245982022242628303234360

[0,3,48,615,7404,86415,987648,11111103,123456780,
 12469134879,1259259166920,127160484583143,
 12839505247415568,1296296203651668195,
 130864188256177941024,13209875614718906234055,
 1333333240382001836547288,
 134567891929211304968880723,
 13580245982022242628303234360]

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Last modified October 26 21:33 EDT 2021. Contains 348269 sequences. (Running on oeis4.)