login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A308072 Numbers k such that k is the substring identical to the most significant digits of its base-9 representation. 3
0, 1, 2, 3, 4, 5, 6, 7, 8, 1066338786883726756382, 1066338787045067082685, 1066338805156287287066, 1066338805156287287067, 1066338805156287300050, 1066338805156301216066, 1066341132816741837214, 1070235882243468707818, 1070235882243470056412, 1070236076684636644063 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Numbers k whose base-9 representation begins with the same digits as k itself.
LINKS
EXAMPLE
1066338786883726756382_10 = 10663387868837267563825_9, which also begins with '1066338786883726756382'.
PROG
(PARI) isok(n) = my(vb=digits(n, 9), vd=digits(n)); vd == vector(#vd, k, vb[k]); \\ Michel Marcus, May 17 2019
CROSSREFS
This is a subsequence of A228052.
See A181929, A307254, A307255, A307256, A307257, A308070, A308071 for other bases.
Sequence in context: A004914 A243369 A228052 * A084689 A021085 A031006
KEYWORD
nonn,base
AUTHOR
Scott R. Shannon, May 11 2019
STATUS
approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 29 01:36 EDT 2024. Contains 371264 sequences. (Running on oeis4.)