The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A067778 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A067778

Numbers k such that gcd(k, numerator(B(2*k))) is not squarefree where B(2*k) are the Bernoulli numbers.
(history; published version)

#33 by OEIS Server at Sat Aug 31 04:32:37 EDT 2024

LINKS

Amiram Eldar, <a href="/A067778/b067778_1.txt">Table of n, a(n) for n = 1..1000</a>

#32 by Michel Marcus at Sat Aug 31 04:32:37 EDT 2024

STATUS

reviewed

approved

Discussion

Sat Aug 31

04:32

OEIS Server: Installed first b-file as b067778.txt.

#31 by Joerg Arndt at Sat Aug 31 03:40:01 EDT 2024

STATUS

proposed

reviewed

#30 by Amiram Eldar at Sat Aug 31 03:34:27 EDT 2024

STATUS

editing

proposed

#29 by Amiram Eldar at Sat Aug 31 03:01:16 EDT 2024

CROSSREFS

Cf. A013929, A027641, A027642, A097704.

#28 by Amiram Eldar at Sat Aug 31 02:34:45 EDT 2024

NAME

Numbers n k such that gcd(n, k, numerator(B(2n2*k))) is not squarefree where B(2n2*k) are the Bernoulli numbers.

CROSSREFS

Cf. A013929, A097704.

EXTENSIONS

'Needs["NumberTheory`"]' (no longer needed) removed from Mathematica code by Jean-François Alcover, Dec 04 2013

#27 by Amiram Eldar at Sat Aug 31 02:33:37 EDT 2024

LINKS

Amiram Eldar, <a href="/A067778/b067778_1.txt">Table of n, a(n) for n = 1..1000</a>

STATUS

approved

editing

#26 by Andrey Zabolotskiy at Mon Jan 01 14:01:33 EST 2024

STATUS

editing

approved

#25 by Andrey Zabolotskiy at Mon Jan 01 14:01:30 EST 2024

NAME

Numbers n such that gcd(n, numerator(B(2n)) ) is not squarefree where B(2n) are the Bernoulli numbers.

STATUS

approved

editing

#24 by Jon E. Schoenfield at Fri Oct 18 23:09:35 EDT 2019

STATUS

editing

approved