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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A190640 Numbers whose base-3 expansion ends in 2 and does not contain any 1's. 0
2, 8, 20, 26, 56, 62, 74, 80, 164, 170, 182, 188, 218, 224, 236, 242, 488, 494, 506, 512, 542, 548, 560, 566, 650, 656, 668, 674, 704, 710, 722, 728, 1460, 1466, 1478, 1484, 1514, 1520, 1532, 1538, 1622, 1628, 1640, 1646, 1676, 1682, 1694, 1700, 1946, 1952, 1964, 1970, 2000, 2006, 2018, 2024, 2108, 2114, 2126 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..59.

MATHEMATICA

Select[Range[2200], Last[IntegerDigits[#, 3]]==2&&DigitCount[#, 3, 1]==0&] (* Harvey P. Dale, Sep 09 2012 *)

CROSSREFS

A subset of A005836.

Sequence in context: A043002 A108180 A192153 * A018226 A162626 A137306

Adjacent sequences:  A190637 A190638 A190639 * A190641 A190642 A190643

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, May 15 2011

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified May 20 13:08 EDT 2013. Contains 225460 sequences.