login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A039404 Numbers n such that representation in base 10 has same nonzero number of 1's and 4's. 0
14, 41, 104, 124, 134, 140, 142, 143, 145, 146, 147, 148, 149, 154, 164, 174, 184, 194, 214, 241, 314, 341, 401, 410, 412, 413, 415, 416, 417, 418, 419, 421, 431, 451, 461, 471, 481, 491, 514, 541, 614, 641, 714, 741, 814, 841, 914, 941, 1004, 1024 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..50.

MATHEMATICA

Select[Range[1100], DigitCount[#, 10, 1]==DigitCount[#, 10, 4]>0&] (* Harvey P. Dale, Jun 09 2016 *)

CROSSREFS

Sequence in context: A105869 A216298 A056034 * A043227 A044007 A199710

Adjacent sequences:  A039401 A039402 A039403 * A039405 A039406 A039407

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved

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 November 27 21:32 EST 2020. Contains 338684 sequences. (Running on oeis4.)