login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A296450 Integers N that yield exactly 10 different digits when all products of two successive digits of N are considered. 1

%I

%S 1633956,1633965,1659336,1659933,1693365,1775428,1775442,1778425,

%T 1783365,1853394,1853397,1923956,1923965,1932956,1932965,1936690,

%U 1936940,1936970,1942593,1942598,1952493,1952498,1963940,1963970,1966390,1986532,2335689,2336593,2336598,2339563,2339956,2339965

%N Integers N that yield exactly 10 different digits when all products of two successive digits of N are considered.

%C nDigits Count Min Max

%C ------- ----- ---------- ----------

%C 6 0

%C 7 286 1633956 9985197

%C 8 1254 11561774 99851332

%C 9 1708 113245177 985113324

%C 10 468 1123315817 9185132117

%C 11 0

%C There are no 6-digit or 11-digit integers that produce the digits 0 to 9 by multiplication of two contiguous digits of N. The smallest such integer is 1633956; the largest one is 9185132117; the sequence has 3716 terms.

%H Lars Blomberg, <a href="/A296450/b296450.txt">Table of n, a(n) for n = 1..3716</a>

%e The first term is 1633956. The successive products of two contiguous digits of 1633956 are 1*6=6, 6*3=18, 3*3=9, 3*9=27, 9*5=45, 5*6=30. We see that 6, 18, 9, 27, 45 and 30 include all digits 0 to 9, none being repeated.

%K nonn,base,fini

%O 1,1

%A _Eric Angelini_ and _Lars Blomberg_, Dec 13 2017

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 21 15:12 EDT 2019. Contains 323444 sequences. (Running on oeis4.)