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A050289 Zeroless pandigital numbers: numbers containing the digits 1-9 and no 0's. 21
123456789, 123456798, 123456879, 123456897, 123456978, 123456987, 123457689, 123457698, 123457869, 123457896, 123457968, 123457986, 123458679, 123458697, 123458769, 123458796, 123458967, 123458976 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

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]

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]

A230959(a(n)) = 0. - Reinhard Zumkeller, Nov 02 2013

LINKS

Table of n, a(n) for n=1..18.

James Grime and Brady Haran, Why 381,654,729 is awesome (2013)

H. Fripertinger, Operate on "9" to display zeroless pandigitals

Eric Weisstein's World of Mathematics, Pandigital Number

CROSSREFS

Cf. A050290.

Sequence in context: A068247 A224780 A180408 * A204140 A175547 A053654

Adjacent sequences:  A050286 A050287 A050288 * A050290 A050291 A050292

KEYWORD

nonn,base

AUTHOR

Eric W. Weisstein

STATUS

approved

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Last modified October 20 19:57 EDT 2014. Contains 248371 sequences.