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A050289 Zeroless pandigital numbers: numbers containing the digits 1-9 and no 0's. 25


%S 123456789,123456798,123456879,123456897,123456978,123456987,

%T 123457689,123457698,123457869,123457896,123457968,123457986,

%U 123458679,123458697,123458769,123458796,123458967,123458976

%N Zeroless pandigital numbers: numbers containing the digits 1-9 and no 0's.

%C The first 9!=362,880 terms of this sequence are permutations of the digits 1-9 with a(9!)=987654321. [From _Jeremy Gardiner_, May 28 2010]

%C First differences are given in A209280 (for the first 9! terms) or in A219664 (for at least as much initial terms). [_M. F. Hasler_, Mar 03 2013]

%C A230959(a(n)) = 0. - _Reinhard Zumkeller_, Nov 02 2013

%H James Grime and Brady Haran, <a href="http://www.youtube.com/watch?v=gaVMrqzb91w">Why 381,654,729 is awesome</a> (2013)

%H H. Fripertinger, <a href="http://www-ang.kfunigraz.ac.at/~fripert/fga/k1elsn.html">Operate on "9" to display zeroless pandigitals</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PandigitalNumber.html">Pandigital Number</a>

%Y Cf. A050290.

%K nonn,base

%O 1,1

%A _Eric W. Weisstein_

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Last modified July 27 04:53 EDT 2017. Contains 289841 sequences.