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A009030 as a simple table

n a(n)
0 1
1 0
2 -1
3 -3
4 -10
5 -10
6 -10
7 560
8 1220
9 24936
10 -53660
11 1220252
12 -13415576
13 140346648
14 -2192051992
15 28246127520
16 -453007180912
17 7224412576832
18 -124772679402064
19 2275818139520912
20 -43588354415158432
21 881182228173945952

[1,0,-1,-3,-10,-10,-10,560,1220,24936,-53660,
 1220252,-13415576,140346648,-2192051992,
 28246127520,-453007180912,7224412576832,
 -124772679402064,2275818139520912,
 -43588354415158432,881182228173945952]

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)