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A268329 as a simple table

n a(n)
5 2
6 10
7 40
8 150
9 550
10 2002
11 7280
12 26520
13 96900
14 355300
15 1307504
16 4828850
17 17895150
18 66533250
19 248124000
20 927983760
21 3479939100
22 13082337900
23 49295766000
24 186156379500
25 704415740028
26 2670587146260
27 10142836030240
28 38586876202000
29 147029304149000

[2,10,40,150,550,2002,7280,26520,96900,355300,
 1307504,4828850,17895150,66533250,248124000,
 927983760,3479939100,13082337900,49295766000,
 186156379500,704415740028,2670587146260,
 10142836030240,38586876202000,147029304149000]

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Last modified April 23 07:34 EDT 2024. Contains 371905 sequences. (Running on oeis4.)