[seqfan] A proof is needed.

[Remy José Cano Ramírez]

Concerning to A215940 and the pending draft for A217480,

Please take a look to the link labeled: "On the (10-1)^N! conjecture and
its proof", and read the comments inside such source code.

Someone can tell if this problem may be found already treated in some
paper?. (Until now when writting this, I was unable to find at least one
reference)

Thanks, and all the best. Sincerely

R. J. Cano