The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A105274

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing all changes.

A105274

Peaks in digital expansions of Pi: digits which are larger than their neighbors.
(history; published version)

#8 by Harvey P. Dale at Sat Dec 03 17:49:09 EST 2022

STATUS

editing

approved

#7 by Harvey P. Dale at Sat Dec 03 17:49:06 EST 2022

MATHEMATICA

Select[Partition[RealDigits[Pi, 10, 500][[1]], 3, 1], #[[1]]<#[[2]]>#[[3]]&][[All, 2]] (* Harvey P. Dale, Dec 03 2022 *)

STATUS

approved

editing

#6 by Alois P. Heinz at Sat Oct 01 17:03:01 EDT 2016

STATUS

editing

approved

#5 by Alois P. Heinz at Sat Oct 01 17:02:57 EDT 2016

NAME

Peaks in digital expansions of piPi: digits which are larger than their neighbors.

STATUS

approved

editing

#4 by Russ Cox at Fri Mar 30 17:26:12 EDT 2012

AUTHOR

_Zak Seidov (zakseidov(AT)yahoo.com), _, Apr 25 2005

Discussion

Fri Mar 30

17:26

OEIS Server: https://oeis.org/edit/global/139

#3 by Charles R Greathouse IV at Sun Nov 14 22:19:41 EST 2010

STATUS

proposed

approved

#2 by Charles R Greathouse IV at Sun Nov 14 22:19:39 EST 2010

KEYWORD

nonn,base,new

STATUS

approved

proposed

#1 by N. J. A. Sloane at Tue Jul 19 03:00:00 EDT 2005

NAME

Peaks in digital expansions of pi: digits which are larger than their neighbors.

DATA

4, 9, 6, 9, 9, 8, 6, 6, 8, 9, 9, 9, 7, 8, 9, 9, 9, 3, 8, 6, 6, 8, 8, 8, 5, 4, 7, 9, 8, 8, 3, 8, 3, 7, 9, 8, 6, 9, 8, 3, 7, 5, 9, 8, 8, 8, 7, 5, 8, 7, 9, 8, 9, 6, 9, 9, 9, 8, 9, 9, 9, 6, 8, 7, 6, 8, 8, 8, 6, 7, 2, 9, 9, 6, 8, 9, 6, 8, 5, 8, 9, 6, 7, 6, 9, 4, 7, 7, 8, 6, 7, 5, 9, 9, 8, 9, 5, 9, 7, 5, 6, 9, 9, 6, 5

OFFSET

1,1

FORMULA

d[i]>d[i+1]&&d[i]>d[i-1]

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Apr 25 2005

STATUS

approved