The On-Line Encyclopedia of Integer Sequences® (OEIS®)

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The On-Line Encyclopedia of Integer Sequences® (OEIS®)

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Revisions by Dmitry Petukhov

(See also Dmitry Petukhov's wiki page)

(Underlined text is an addition; strikethrough text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A111950

Smallest order n twin prime cluster.
(history; published version)

#13 by Dmitry Petukhov at Fri Aug 18 15:52:00 EDT 2023

STATUS

editing

proposed

Discussion
Fri Aug 18	15:57	Dmitry Petukhov: But the very value of a(11) was found by Tomáš Brada back in the summer of 2020.

#12 by Dmitry Petukhov at Fri Aug 18 15:50:56 EDT 2023

EXTENSIONS

a(11) from Tomáš Brada, added by _Dmitry Petukhov_._, Aug 18 2023

#10 by Dmitry Petukhov at Fri Aug 18 14:36:06 EDT 2023

STATUS

editing

proposed

Discussion
Fri Aug 18	14:48	Michel Marcus: You need the date

#9 by Dmitry Petukhov at Fri Aug 18 14:35:55 EDT 2023

EXTENSIONS

a(11) from Tomáš Brada, added by Dmitry Petukhov.

#8 by Dmitry Petukhov at Fri Aug 18 14:34:40 EDT 2023

EXTENSIONS

a(11) from Tomáš Brada, added Dmitry Petukhov.

STATUS

proposed

editing

#7 by Dmitry Petukhov at Fri Aug 18 11:55:18 EDT 2023

STATUS

editing

proposed

Discussion
Fri Aug 18	14:29	Michel Marcus: Please add extension for New term

#6 by Dmitry Petukhov at Fri Aug 18 11:51:59 EDT 2023

DATA

3, 5, 5, 9419, 909287, 325267931, 678771479, 1107819732821, 170669145704411, 3324648277099157, 789795449254776509

STATUS

approved

editing

Discussion
Fri Aug 18	11:55	Dmitry Petukhov: a(11) is in https://boinc.tbrada.eu/spt/tuples.php?tpt=22 by Tomáš Brada.

A363937

Minimal number of terms of an Egyptian fraction to be added to, or subtracted from, harmonic number H(n) to get an integer.
(history; published version)

#52 by Dmitry Petukhov at Mon Jul 24 09:48:21 EDT 2023

STATUS

editing

proposed

Discussion
Mon Jul 24	09:50	Dmitry Petukhov: This is the end of the continuation of the sequence, the count is too long from here.
Fri Jul 28	05:54	Denis Ivanov: Are there any other remarks? Can this sequence be accepted?

#51 by Dmitry Petukhov at Mon Jul 24 09:48:08 EDT 2023

DATA

0, 1, 1, 1, 2, 2, 3, 3, 3, 3, 2, 3, 4, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 4, 5, 5, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6

EXTENSIONS

a(31)-a(4445) from Dmitry Petukhov, Jul 24 2023

STATUS

proposed

editing

#50 by Dmitry Petukhov at Mon Jul 24 06:05:34 EDT 2023

STATUS

editing

proposed

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Last modified June 20 16:33 EDT 2024. Contains 373528 sequences. (Running on oeis4.)