cp's OEIS Frontend

A230383 Lexicographically earliest sequence of distinct positive integers such that the first difference contains only distinct positive or negative squares.

%I A230383 #10 Oct 25 2013 12:24:11
%S A230383 1,2,6,5,14,10,26,17,42,78,29,4,53,37,101,20,120,56,137,16,160,60,24,
%T A230383 145,314,25,221,52,277,21,310,85,341,197,521,80,441,41,482,121,605,76,
%U A230383 476,152,681,105,730,54,630,146,822,38,767,142,926,1767,3,903,62
%N A230383 Lexicographically earliest sequence of distinct positive integers such that the first difference contains only distinct positive or negative squares.
%C A230383 Is this a permutation of the positive integers ?
%C A230383 Will every square show up in the first difference ?
%H A230383 Paul Tek, <a href="/A230383/b230383.txt">Table of n, a(n) for n = 1..10000</a>
%H A230383 Paul Tek, <a href="/A230383/a230383.txt">Perl program for this sequence</a>
%e A230383 n  a(n)   First difference
%e A230383 -  ----   ----------------
%e A230383 1     1
%e A230383           +1^2
%e A230383 2     2
%e A230383           +2^2
%e A230383 3     6
%e A230383           -1^2
%e A230383 4     5
%e A230383           +3^2
%e A230383 5    14
%e A230383           -2^2
%e A230383 6    10
%e A230383           +4^2
%e A230383 7    26
%e A230383           ...
%o A230383 (Perl) See Link section.
%Y A230383 Cf. A081145, A175498, A230455, A230560.
%K A230383 nonn
%O A230383 1,2
%A A230383 _Paul Tek_, Oct 17 2013