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A132421 as a simple table

n a(n)
1 1
2 2
3 3
4 20
5 420
6 90
7 1155
8 6552
9 990
10 340340
11 38798760
12 406980
13 314954640
14 30630600
15 489304530
16 18357939600
17 21649708080
18 2872543794120
19 181957885200
20 5555594444400
21 237972194460
22 32681613985020
23 378270916143120
24 892567605600
25 392636231914726800
26 1707200400597892200
27 1079806447472472720
28 4176841288170450900

[1,2,3,20,420,90,1155,6552,990,340340,38798760,
 406980,314954640,30630600,489304530,18357939600,
 21649708080,2872543794120,181957885200,
 5555594444400,237972194460,32681613985020,
 378270916143120,892567605600,392636231914726800,
 1707200400597892200,1079806447472472720,
 4176841288170450900]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)