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A027785 as a simple table

n a(n)
10 66
11 936
12 7098
13 38220
14 163800
15 594048
16 1893528
17 5441904
18 14360580
19 35271600
20 81477396
21 178474296
22 373173528
23 748843200
24 1448655000
25 2711882160
26 4928324310
27 8718517080
28 15049821150
29 25401694500
30 41997468240
31 68124925440
32 108574099920
33 170228167200
34 262852317000

[66,936,7098,38220,163800,594048,1893528,5441904,
 14360580,35271600,81477396,178474296,373173528,
 748843200,1448655000,2711882160,4928324310,
 8718517080,15049821150,25401694500,41997468240,
 68124925440,108574099920,170228167200,
 262852317000]

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Last modified April 23 11:35 EDT 2024. Contains 371912 sequences. (Running on oeis4.)