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A260887 as a simple table

n a(n)
1 1
2 3
3 14
4 120
5 1556
6 27974
7 618824
8 16223180
9 490127050
10 16761331644
11 639969571892
12 26985326408240
13 1245476099801252
14 62451726395242858
15 3380720087847928728
16 196504354827002278248
17 12206388156005725243280
18 806977883623811932432386
19 56573396893818112613554940
20 4192088709829783508863131872

[1,3,14,120,1556,27974,618824,16223180,490127050,
 16761331644,639969571892,26985326408240,
 1245476099801252,62451726395242858,
 3380720087847928728,196504354827002278248,
 12206388156005725243280,806977883623811932432386,
 56573396893818112613554940,
 4192088709829783508863131872]

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Last modified April 19 15:11 EDT 2024. Contains 371794 sequences. (Running on oeis4.)