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

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A023707 Numbers with exactly 2 0's in base 4 expansion. 1
16, 32, 48, 65, 66, 67, 68, 72, 76, 80, 96, 112, 129, 130, 131, 132, 136, 140, 144, 160, 176, 193, 194, 195, 196, 200, 204, 208, 224, 240, 261, 262, 263, 265, 266, 267, 269, 270, 271, 273, 274, 275, 276, 280, 284, 289, 290, 291 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..48.

MATHEMATICA

Select[ Range[ 320 ], (Count[ IntegerDigits[ #, 4 ], 0 ]==2)& ]

CROSSREFS

Sequence in context: A044841 A033013 A043334 * A044442 A082294 A048946

Adjacent sequences:  A023704 A023705 A023706 * A023708 A023709 A023710

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 January 17 15:12 EST 2020. Contains 330958 sequences. (Running on oeis4.)