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Numbers k such that k and 5*k, taken together, are zeroless pandigital.
4

%I #7 Jul 15 2021 22:14:55

%S 2697,2769,2937,2967,2973,3297,3729,6297,7629,9237,9627,9723

%N Numbers k such that k and 5*k, taken together, are zeroless pandigital.

%e 2697 and 2697*5=13485 use once all the digits from 1 to 9.

%Y Cf. A054383, A064160, A115927, A115929, A115931, A115932.

%K nonn,base,fini,full

%O 1,1

%A _Giovanni Resta_, Feb 06 2006