

A116351


Numbers k such that k*(k+5) gives the concatenation of two numbers m and m+9.


4



8446, 8811, 69125298546226023972, 69855225553525294045, 74604750601020544520, 75334677608319814593, 92496418993920707747, 93226346001219977820, 97975871048715228295, 98705798056014498368
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OFFSET

1,1


LINKS



EXAMPLE

8811 * 8816 = 7767//7776, where // denotes concatenation.


CROSSREFS



KEYWORD

nonn,base


AUTHOR



STATUS

approved



