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A186557 as a simple table

na(n)
1927477
2783375343
3663296784123
4561714653720250
5475681559860717916
6402827283017904807331
7341131017852900112413067
8288884064380556803805427879
9244639147969972250796140260427

[927477,783375343,663296784123,561714653720250,
 475681559860717916,402827283017904807331,
 341131017852900112413067,
 288884064380556803805427879,
 244639147969972250796140260427]