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A113289 as a simple table

n a(n)
0 1
1 -1
2 4
3 -15
4 36
5 -119
6 302
7 -911
8 2440
9 -7199
10 20186
11 -60359
12 177204
13 -546615
14 1683286
15 -5401759
16 17456128
17 -58447151
18 197925490
19 -691264279
20 2446636396
21 -8897012871
22 32811147054
23 -123933345455
24 474792813176
25 -1858243857599
26 7375013350282
27 -29840434526951

[1,-1,4,-15,36,-119,302,-911,2440,-7199,20186,
 -60359,177204,-546615,1683286,-5401759,17456128,
 -58447151,197925490,-691264279,2446636396,
 -8897012871,32811147054,-123933345455,
 474792813176,-1858243857599,7375013350282,
 -29840434526951]

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)