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A112144 as a simple table

n a(n)
0 1
1 -20
2 -62
3 -216
4 -641
5 -1636
6 -3778
7 -8248
8 -17277
9 -34664
10 -66878
11 -125312
12 -229252
13 -409676
14 -716420
15 -1230328
16 -2079227
17 -3460416
18 -5677816
19 -9198424
20 -14729608
21 -23328520
22 -36567242
23 -56774712
24 -87369461
25 -133321908
26 -201825396
27 -303248408

[1,-20,-62,-216,-641,-1636,-3778,-8248,-17277,
 -34664,-66878,-125312,-229252,-409676,-716420,
 -1230328,-2079227,-3460416,-5677816,-9198424,
 -14729608,-23328520,-36567242,-56774712,-87369461,
 -133321908,-201825396,-303248408]

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Last modified August 16 19:19 EDT 2018. Contains 313809 sequences. (Running on oeis4.)