The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A044035 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A044035

Numbers k such that 6 and 7 occur juxtaposed in the base-10 representation of k but not of k+1.
(history; published version)

#11 by Harvey P. Dale at Thu Mar 07 11:27:38 EST 2024

STATUS

editing

approved

#10 by Harvey P. Dale at Thu Mar 07 11:27:36 EST 2024

MATHEMATICA

SequencePosition[Table[If[SequenceCount[IntegerDigits[n], {6, 7}]>0 || SequenceCount[ IntegerDigits[ n], {7, 6}]>0, 1, 0], {n, 2100}], {1, 0}][[;; , 1]] (* Harvey P. Dale, Mar 07 2024 *)

STATUS

approved

editing

#9 by Joerg Arndt at Sun Aug 29 01:59:04 EDT 2021

STATUS

reviewed

approved

#8 by Michel Marcus at Sun Aug 29 01:57:08 EDT 2021

STATUS

proposed

reviewed

#7 by Jon E. Schoenfield at Sat Aug 28 23:24:40 EDT 2021

STATUS

editing

proposed

#6 by Jon E. Schoenfield at Sat Aug 28 23:24:37 EDT 2021

NAME

Numbers n k such that 6 and 7 occur juxtaposed in the base -10 representation of n k but not of nk+1.

STATUS

approved

editing

#5 by Russ Cox at Fri Mar 30 18:56:41 EDT 2012

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

Clark Kimberling

Discussion

Fri Mar 30

18:56

OEIS Server: https://oeis.org/edit/global/285

#4 by N. J. A. Sloane at Fri May 11 03:00:00 EDT 2007

NAME

Numbers n such that 6 and 7 occur juxtaposed in the base 10 representation of n but not of n+1.

KEYWORD

nonn,base,new

#3 by N. J. A. Sloane at Sat Sep 13 03:00:00 EDT 2003

KEYWORD

nonn,base,new

AUTHOR

Clark Kimberling, (ck6(AT)evansville.edu)

#2 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003

NAME

6 and 7 occur juxtaposed in the base 10 representation of n, but not of n+1.

KEYWORD

nonn,base,new

AUTHOR

Clark Kimberling, ck6@cedar.(AT)evansville.edu