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A000476 as a simple table

n a(n)
5 15
6 72
7 609
8 4960
9 46188
10 471660
11 5275941
12 64146768
13 842803767
14 11902900380
15 179857257960
16 2895705788736
17 49491631601635
18 895010868095256
19 17074867330880805
20 342733960299356800
21 7220616209235766260
22 159312370008282356844
23 3673720238903201471593

[15,72,609,4960,46188,471660,5275941,64146768,
 842803767,11902900380,179857257960,2895705788736,
 49491631601635,895010868095256,17074867330880805,
 342733960299356800,7220616209235766260,
 159312370008282356844,3673720238903201471593]

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Last modified June 10 07:20 EDT 2024. Contains 373253 sequences. (Running on oeis4.)