The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A250206

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A250206

Least base b > 1 such that b^A000010(n) = 1 (mod n^2).
(history; published version)

#69 by Bruno Berselli at Fri Mar 13 05:02:08 EDT 2015

STATUS

reviewed

approved

#68 by Charles R Greathouse IV at Fri Mar 13 00:51:18 EDT 2015

STATUS

proposed

reviewed

#67 by Charles R Greathouse IV at Fri Mar 13 00:51:12 EDT 2015

STATUS

editing

proposed

#66 by Charles R Greathouse IV at Fri Mar 13 00:51:07 EDT 2015

CROSSREFS

Cf. A039678, A185103, A125636, A039951, A247154, A001220, A014127, A123692, A212583, A123693, A045616, A111027, A128667, A234810, A242741, A128668, A244260, A090968, A242982, A128669, A077816, A242958, A242959, A241978, A242960, A241977, A253016, A245529.

Cf. A001220, A014127, A123692, A212583, A123693, A045616, A111027, A128667, A234810, A242741, A128668, A244260, A090968, A242982, A128669.

Cf. A077816, A242958, A242959, A241978, A242960, A241977, A253016, A245529.

STATUS

proposed

editing

#65 by Eric Chen at Fri Mar 13 00:25:42 EDT 2015

STATUS

editing

proposed

#64 by Eric Chen at Fri Mar 13 00:25:35 EDT 2015

COMMENTS

Does every natural number (>1) appear in this sequence? If yes, do they appear infinitely many times?

#63 by Eric Chen at Fri Mar 13 00:24:46 EDT 2015

COMMENTS

Does every natural number (>1) appear in this sequence?

STATUS

proposed

editing

#62 by Eric Chen at Tue Mar 10 12:48:12 EDT 2015

STATUS

editing

proposed

Discussion

Wed Mar 11

01:26

Eric Chen: Could you approve this sequence?

#61 by Eric Chen at Tue Mar 10 12:47:54 EDT 2015

PROG

(PARI) a(n)=for(k=2, 2^24, if((k^eulerphi(n))%(n^2)==1, return(k))) \\ _Eric Chen_, Feb 22 2015

STATUS

proposed

editing

#60 by Eric Chen at Mon Mar 09 06:13:21 EDT 2015

STATUS

editing

proposed