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A113265 as a simple table

na(n)
01
1-5
267
3-1013
417131
5-309461
65849131
7-114243413
82287607467
9-46710150485
10968879741611
11-20358507992405
12432438339283627
13-9270351245202773
14200309903779703467
15-4358060643012007253
1695389812498547780267
17-2099063396615767545173

[1,-5,67,-1013,17131,-309461,5849131,-114243413,
 2287607467,-46710150485,968879741611,
 -20358507992405,432438339283627,-9270351245202773,
 200309903779703467,-4358060643012007253,
 95389812498547780267,-2099063396615767545173]