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A228447 as a simple table

n a(n)
1 1
2 -3
3 7
4 -15
5 30
6 -57
7 104
8 -183
9 313
10 -522
11 852
12 -1365
13 2150
14 -3336
15 5106
16 -7719
17 11538
18 -17067
19 25004
20 -36306
21 52280
22 -74700
23 105960
24 -149277
25 208951
26 -290706
27 402127
28 -553224
29 757158
30 -1031166
31 1397744
32 -1886151
33 2534316
34 -3391254
35 4520112
36 -6002007

[1,-3,7,-15,30,-57,104,-183,313,-522,852,-1365,
 2150,-3336,5106,-7719,11538,-17067,25004,-36306,
 52280,-74700,105960,-149277,208951,-290706,402127,
 -553224,757158,-1031166,1397744,-1886151,2534316,
 -3391254,4520112,-6002007]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)