The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A283677

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A283677

a(n) = lcm(b(b(n)), b(n-b(n)+1)) where b(n) = A004001(n).
(history; published version)

#27 by N. J. A. Sloane at Thu Mar 23 14:40:44 EDT 2017

STATUS

proposed

approved

#26 by Antti Karttunen at Thu Mar 23 14:36:47 EDT 2017

STATUS

editing

proposed

#25 by Antti Karttunen at Thu Mar 23 14:36:35 EDT 2017

CROSSREFS

Cf. also A283470, A283673.

STATUS

proposed

editing

#24 by Altug Alkan at Wed Mar 22 07:02:07 EDT 2017

STATUS

editing

proposed

#23 by Altug Alkan at Wed Mar 22 07:00:29 EDT 2017

KEYWORD

nonn,look,changed

STATUS

proposed

editing

Discussion

Wed Mar 22

07:02

Altug Alkan: Since you think this inspiration and attempt is interesting, I also added the 'look' because this graph is interesting. Thanks, best regards.

#22 by Antti Karttunen at Sat Mar 18 04:43:42 EDT 2017

STATUS

editing

proposed

Discussion

Sat Mar 18

09:19

Altug Alkan: gcd is also interesting and obviously has role in the fact of this variant, in my opinion. I am sorry, I dont understand maybe:"Where this did came afore?" is this question related with image of scatterplot? Do you mean how they begin to this order? My language is not good always,sorry. Thanks, best regards.

Wed Mar 22

04:22

Antti Karttunen: No, I was just interested how did you get inspired with this. But I agree, A004001 is very fertile, and still under-explored corner in the sequence-space.

#21 by Antti Karttunen at Sat Mar 18 04:43:31 EDT 2017

CROSSREFS

Cf. also A283470.

STATUS

proposed

editing

#20 by Antti Karttunen at Sat Mar 18 04:16:49 EDT 2017

STATUS

editing

proposed

#19 by Antti Karttunen at Sat Mar 18 04:08:22 EDT 2017

LINKS

<a href="/index/Lc#lcm">Index entries for sequences related to lcm's</a>

Discussion

Sat Mar 18

04:16

Antti Karttunen: Interesting. Where this did came afore? How about gcd?

#18 by Antti Karttunen at Sat Mar 18 04:06:28 EDT 2017

FORMULA

a(n) = lcm(A004001(A004001(n)), A004001(A080677(n))). - Antti Karttunen, Mar 18 2017

CROSSREFS

Cf. A004001, A080677.