The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A283442 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A283442

a(n) = lcm(n,5) / gcd(n,5).
(history; published version)

#21 by Harvey P. Dale at Sun Nov 17 15:56:46 EST 2024

STATUS

editing

approved

#20 by Harvey P. Dale at Sun Nov 17 15:56:44 EST 2024

MATHEMATICA

rRecurrenceLinearRecurrence[{0, 0, 0, 0, 2, 0, 0, 0, 0, -1}, {0, 5, 10, 15, 20, 1, 30, 35, 40, 45}, 60] (* Harvey P. Dale, Aug 11 2019 *)

STATUS

approved

editing

#19 by Joerg Arndt at Sat Oct 07 05:06:37 EDT 2023

STATUS

reviewed

approved

#18 by Michel Marcus at Sat Oct 07 02:38:29 EDT 2023

STATUS

proposed

reviewed

#17 by Amiram Eldar at Sat Oct 07 02:27:21 EDT 2023

STATUS

editing

proposed

#16 by Amiram Eldar at Sat Oct 07 02:12:00 EDT 2023

FORMULA

Sum_{k=1..n} a(k) ~ (101/50)*n^2. - Amiram Eldar, Oct 07 2023

STATUS

approved

editing

#15 by Harvey P. Dale at Sun Aug 11 12:36:56 EDT 2019

STATUS

editing

approved

#14 by Harvey P. Dale at Sun Aug 11 12:36:53 EDT 2019

MATHEMATICA

rRecurrence[{0, 0, 0, 0, 2, 0, 0, 0, 0, -1}, {0, 5, 10, 15, 20, 1, 30, 35, 40, 45}, 60] (* Harvey P. Dale, Aug 11 2019 *)

STATUS

approved

editing

#13 by Bruno Berselli at Wed Mar 08 10:26:24 EST 2017

STATUS

proposed

approved

#12 by Colin Barker at Wed Mar 08 09:51:01 EST 2017

STATUS

editing

proposed