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A156342 as a simple table

na(n)
01
1-9
2-22
31917
44202
5-328329
6-2141062
7944408709
82051257802
9-291080038239
10-3160876480102
111096531750008567
127144366876525802
13-1464544848936127149
14-22264942494437763142
1542130722382384803873093
1691499710761674098888202
17-24528149284612129806253059

[1,-9,-22,1917,4202,-328329,-2141062,944408709,
 2051257802,-291080038239,-3160876480102,
 1096531750008567,7144366876525802,
 -1464544848936127149,-22264942494437763142,
 42130722382384803873093,91499710761674098888202,
 -24528149284612129806253059]