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A270693 as a simple table

n a(n)
0 1
1 -25
2 51
3 -100
4 151
5 -225
6 301
7 -400
8 501
9 -625
10 751
11 -900
12 1051
13 -1225
14 1401
15 -1600
16 1801
17 -2025
18 2251
19 -2500
20 2751
21 -3025
22 3301
23 -3600
24 3901
25 -4225
26 4551
27 -4900
28 5251
29 -5625
30 6001
31 -6400
32 6801
33 -7225
34 7651
35 -8100
36 8551
37 -9025
38 9501
39 -10000
40 10501

[1,-25,51,-100,151,-225,301,-400,501,-625,751,
 -900,1051,-1225,1401,-1600,1801,-2025,2251,-2500,
 2751,-3025,3301,-3600,3901,-4225,4551,-4900,5251,
 -5625,6001,-6400,6801,-7225,7651,-8100,8551,-9025,
 9501,-10000,10501]

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Last modified February 22 11:50 EST 2018. Contains 299452 sequences. (Running on oeis4.)