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A215877 as a simple table

n a(n)
0 0
1 -1
2 -4
3 -16
4 -64
5 -254
6 -1000
7 -3913
8 -15248
9 -59263
10 -229996
11 -892033
12 -3459544
13 -13421784
14 -52104416
15 -202436819
16 -787231328
17 -3064347392
18 -11940020992
19 -46569416006
20 -181808493296
21 -710442293743
22 -2778591945620
23 -10876271461745
24 -42606078512048

[0,-1,-4,-16,-64,-254,-1000,-3913,-15248,-59263,
 -229996,-892033,-3459544,-13421784,-52104416,
 -202436819,-787231328,-3064347392,-11940020992,
 -46569416006,-181808493296,-710442293743,
 -2778591945620,-10876271461745,-42606078512048]

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