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A074260 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 3
5 10
6 120
7 105
8 336
9 2268
10 15120
11 332640
12 498960
13 6486480
14 43243200
15 259459200
16 3113510400
17 35286451200
18 1270312243200
19 3016991577600
20 60339831552000
21 1267136462592000
22 37169336236032000
23 160292762517888000

[1,1,1,1,3,10,120,105,336,2268,15120,332640,
 498960,6486480,43243200,259459200,3113510400,
 35286451200,1270312243200,3016991577600,
 60339831552000,1267136462592000,37169336236032000,
 160292762517888000]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)