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A077983 as a simple table

n a(n)
0 1
1 -2
2 6
3 -17
4 48
5 -136
6 385
7 -1090
8 3086
9 -8737
10 24736
11 -70032
12 198273
13 -561346
14 1589270
15 -4499505
16 12738896
17 -36066072
18 102109441
19 -289089922
20 818464798
21 -2317218881
22 6560457280
23 -18573817120
24 52585767681
25 -148879626882
26 421504606246
27 -1193354233937
28 3378597307248

[1,-2,6,-17,48,-136,385,-1090,3086,-8737,24736,
 -70032,198273,-561346,1589270,-4499505,12738896,
 -36066072,102109441,-289089922,818464798,
 -2317218881,6560457280,-18573817120,52585767681,
 -148879626882,421504606246,-1193354233937,
 3378597307248]

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Last modified May 18 21:39 EDT 2024. Contains 372666 sequences. (Running on oeis4.)