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 A230383 Lexicographically earliest sequence of distinct positive integers such that the first difference contains only distinct positive or negative squares. 3
 1, 2, 6, 5, 14, 10, 26, 17, 42, 78, 29, 4, 53, 37, 101, 20, 120, 56, 137, 16, 160, 60, 24, 145, 314, 25, 221, 52, 277, 21, 310, 85, 341, 197, 521, 80, 441, 41, 482, 121, 605, 76, 476, 152, 681, 105, 730, 54, 630, 146, 822, 38, 767, 142, 926, 1767, 3, 903, 62 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Is this a permutation of the positive integers ? Will every square show up in the first difference ? LINKS Paul Tek, Table of n, a(n) for n = 1..10000 Paul Tek, Perl program for this sequence EXAMPLE n  a(n)   First difference -  ----   ---------------- 1     1           +1^2 2     2           +2^2 3     6           -1^2 4     5           +3^2 5    14           -2^2 6    10           +4^2 7    26           ... PROG (Perl) See Link section. CROSSREFS Cf. A081145, A175498, A230455, A230560. Sequence in context: A193977 A092313 A318358 * A009460 A085205 A094595 Adjacent sequences:  A230380 A230381 A230382 * A230384 A230385 A230386 KEYWORD nonn AUTHOR Paul Tek, Oct 17 2013 STATUS approved

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Last modified October 17 08:36 EDT 2019. Contains 328107 sequences. (Running on oeis4.)