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A045688 as a simple table

na(n)
00
10
20
31
429
51913
695
7311148869
810193207
91664108363
102097555460001
11374694625074883
12-48074332710505411
13-4945837680716249285383
14-2229960300928783674917
15-24840355960694307625698893
16-4153678459092607393588136503
17-61444568105054860319920405585007
18-335560999071136641584079760493377

[0,0,0,1,29,1913,95,311148869,10193207,1664108363,
 2097555460001,374694625074883,-48074332710505411,
 -4945837680716249285383,-2229960300928783674917,
 -24840355960694307625698893,
 -4153678459092607393588136503,
 -61444568105054860319920405585007,
 -335560999071136641584079760493377]