[seqfan] Re: About a problem of Bernardo Recamán Santos

[Giovanni Resta]

On 26/11/2010 13.01, Claudio Meller wrote:
> Hi seqfans,
> I found this problem in http://www.mathpuzzle.com/
> A problem of squaresBernardo Recamán Santos: Find a four-digit square number
> which has at least one digit in common with every other four-digit square
> number.
> Is it interesting ?
> Can somebody check the terms?

I've checked. Your entries are right.
I think that from a "recreational mathematics" point of view
it is an interesting ("base") sequence.

Giovanni