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

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A044153 Numbers n such that string 2,1 occurs in the base 7 representation of n but not of n-1. 0
15, 64, 105, 113, 162, 211, 260, 309, 358, 407, 448, 456, 505, 554, 603, 652, 701, 735, 791, 799, 848, 897, 946, 995, 1044, 1093, 1134, 1142, 1191, 1240, 1289, 1338, 1387, 1436, 1477, 1485, 1534, 1583, 1632, 1681, 1730, 1779 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..42.

CROSSREFS

Sequence in context: A138104 A152099 A119496 * A044534 A063483 A082825

Adjacent sequences:  A044150 A044151 A044152 * A044154 A044155 A044156

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 3 08:48 EST 2016. Contains 278698 sequences.