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A231138 as a simple table

na(n)
118
2100
3570
43234
518376
6104386
7593022
83368932
919138850
10108727402
11617678248
123509017866
1319934661174
14113248415924
15643362012010
163654926870610
1720763567293192
18117957415290738
19670113744215758

[18,100,570,3234,18376,104386,593022,3368932,
 19138850,108727402,617678248,3509017866,
 19934661174,113248415924,643362012010,
 3654926870610,20763567293192,117957415290738,
 670113744215758]