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A138541 as a simple table

n a(n)
0 1
1 -1
2 3
3 -7
4 24
5 -75
6 285
7 -1036
8 4242
9 -16926
10 73206
11 -311256
12 1403028
13 -6247527
14 29082339
15 -134138290
16 640672890
17 -3038045010
18 14818136190
19 -71858704710
20 356665411440
21 -1761879027090
22 8874875097270
23 -44526516209280
24 227135946200940
25 -1154738374364100
26 5955171596514900

[1,-1,3,-7,24,-75,285,-1036,4242,-16926,73206,
 -311256,1403028,-6247527,29082339,-134138290,
 640672890,-3038045010,14818136190,-71858704710,
 356665411440,-1761879027090,8874875097270,
 -44526516209280,227135946200940,-1154738374364100,
 5955171596514900]

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Last modified April 18 20:26 EDT 2024. Contains 371781 sequences. (Running on oeis4.)