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A072350 as a simple table

na(n)
11
21
33
417
5225
63613
7-42997
88725357
92116966081
10-549193907111
11-114757574954509
12117893333517545097
1314433599120070484321
14-65568697910890921624715
152968238619232726100394235
1686999609037195113208781248165

[1,1,3,17,225,3613,-42997,8725357,2116966081,
 -549193907111,-114757574954509,117893333517545097,
 14433599120070484321,-65568697910890921624715,
 2968238619232726100394235,
 86999609037195113208781248165]