The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A240096 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A240096

Numbers with primitive root 15.
(history; published version)

#7 by Harvey P. Dale at Sat Jun 30 13:54:05 EDT 2018

STATUS

editing

approved

#6 by Harvey P. Dale at Sat Jun 30 13:54:02 EDT 2018

MATHEMATICA

Join[{2, 4, 13}, Select[Range[2, 400], PrimitiveRoot[#, 15]==15&]] (* Harvey P. Dale, Jun 30 2018 *)

STATUS

approved

editing

#5 by Joerg Arndt at Tue Apr 01 07:07:46 EDT 2014

STATUS

reviewed

approved

#4 by Bruno Berselli at Tue Apr 01 06:02:53 EDT 2014

STATUS

proposed

reviewed

#3 by Vincenzo Librandi at Tue Apr 01 05:44:29 EDT 2014

STATUS

editing

proposed

#2 by Vincenzo Librandi at Tue Apr 01 05:43:59 EDT 2014

NAME

allocated for Vincenzo LibrandiNumbers with primitive root 15.

DATA

2, 4, 13, 19, 23, 26, 29, 37, 38, 41, 46, 47, 58, 73, 74, 82, 83, 89, 94, 97, 101, 107, 139, 146, 149, 151, 157, 166, 167, 169, 178, 193, 194, 199, 202, 214, 227, 263, 269, 271, 278, 281, 298, 302, 313, 314, 334, 337, 338, 347, 361, 373, 379, 383, 386, 389

OFFSET

1,1

LINKS

Vincenzo Librandi, <a href="/A240096/b240096.txt">Table of n, a(n) for n = 1..1000</a>

MATHEMATICA

pr = 15; Select[Range[2, 500], MultiplicativeOrder[pr, #] == EulerPhi[#] &]

CROSSREFS

Cf. numbers with positive primitive root r: A167791 (r=2), A167792 (r=3), A167793 (r=5), A167794 (r=6), A167795 (r=7), A167796 (r=8), A167797 (r=10), A240028 (r=11), A240030 (r=12), A240032 (r=13), A240094 (r=14).

Cf. numbers with negative primitive root r: A167798 (r=-2), A167799 (r=-3), A167800 (r=-4), A167801 (r=-5), A167802 (r=-6), A167803 (r=-7), A167804 (r=-8), A167805 (r=-9), A167806 (r=-10), A240029 (r=-11), A240031 (r=-12), A240093 (r=-13), A240095 (r=-14), A240097 (r=-15).

KEYWORD

allocated

nonn,easy

AUTHOR

Vincenzo Librandi, Apr 01 2014

STATUS

approved

editing

#1 by Vincenzo Librandi at Tue Apr 01 04:20:28 EDT 2014

NAME

allocated for Vincenzo Librandi

KEYWORD

allocated

STATUS

approved