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Vampire numbers permutations of whose digits are other vampire numbers.
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%I #3 Mar 30 2012 17:36:45

%S 1827,2187,102510,105210,105264,115672,116725,123354,125248,125433,

%T 125460,126846,129775,133245,134725,152608,153436,156240,156289,

%U 174370,175329,180225,182250,182650,186624,193257,197725,201852,215860,226498

%N Vampire numbers permutations of whose digits are other vampire numbers.

%C Use definition 2 of vampire numbers; i.e., this is a subsequence of A014575.

%e The vampire number 102510 is included because all of its digits, including the duplicate 0 and 1, can be rearranged to give at least one other vampire number such as 105210.

%Y Cf. A014575.

%K base,nonn

%O 1,1

%A _Rick L. Shepherd_, Oct 31 2009, Nov 01 2009

%E Extended by _Ray Chandler_, Apr 26 2010