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A157236 as a simple table

na(n)
01
1-3
2-187
31737
4181577
5-2828523
6-433608307
79464818017
81929308914577
9-54151301196243
10-13793410821936427
11473188884804949497
12144631586163051804377
13-5863775132075093720763
14-2090985354124427263262947
1597816726792847265070764177
1639863788048903869672547506977

[1,-3,-187,1737,181577,-2828523,-433608307,
 9464818017,1929308914577,-54151301196243,
 -13793410821936427,473188884804949497,
 144631586163051804377,-5863775132075093720763,
 -2090985354124427263262947,
 97816726792847265070764177,
 39863788048903869672547506977]