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Least vampire number with n fang pairs.
0

%I #11 Jun 14 2014 12:57:33

%S 1260,125460,13078260,16758243290880,24959017348650

%N Least vampire number with n fang pairs.

%H J. K. Andersen, <a href="http://primerecords.dk/vampires">Vampire Numbers</a>

%e a(2) is the smallest number which can be written in 2 ways as the product of two numbers with half as many digits and not both ending in 0: 125460 = 204*615 = 246*510. - _Jens Kruse Andersen_, Jun 14 2014

%Y Cf. A020342, A014575, A048936, A048937.

%K base,more,nice,nonn

%O 1,1

%A _Lekraj Beedassy_, May 27 2004

%E Typo in Cf. to A014575 fixed by _Jens Kruse Andersen_, Jun 14 2014