[seqfan] Re: Publishing policy of subsequences
Frank Adams-Watters
franktaw at netscape.net
Thu Nov 9 14:21:08 CET 2017
There is no such thing as "just" a subsequence. After all, every strictly increasing sequence is a subsequence of A000027. There are many sequences which contain every sequence of positive integers as a subsequence.
As soon as you say a sequence is interesting, you are saying it should be in the OEIS with its own entry.
Franklin T. Adams-Watters
-----Original Message-----
From: Veikko Pohjola <veikko at nordem.fi>
To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
Sent: Thu, Nov 9, 2017 1:28 am
Subject: [seqfan] Publishing policy of subsequences
Dear seqfans,
As it may become clear from the examples given in A293701, normally a(n)<n, but for some specific values of n, like 1 and 3, a(n)=n, meaning that the whole sequence of first differences A293700 from 1 to n is a palindrome. These specific values of n make up, themselves, an interesting sequence starting 1, 3, 5, 7, 9, 11, 13, 15, 17, 46, 83, 120, 157, 194, 231, 268, 305, 342, 379, 416, 453, 490, 527, 564, 601, 638, 675, 712, 749, 786, 823, 860, 897, 934, 971, 1008, 1045, 1082, 1119, 1156, 9105, 19792, 51817, 83842, 201253, 318664, 436075, 553486, …
I wonder would this sequence deserve being published with its own number although it is just a subsequence of A293701.
Veikko Pohjola--Seqfan Mailing list - http://list.seqfan.eu/
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