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 A333835 Lexicographically earliest sequence of distinct positive integers, which when mapped onto a square spiral, gives a set without three distinct evenly spaced aligned points. 2
 1, 2, 3, 4, 17, 18, 20, 21, 22, 24, 27, 28, 31, 33, 34, 61, 80, 81, 87, 90, 93, 100, 131, 135, 145, 146, 148, 152, 154, 157, 158, 160, 166, 171, 172, 174, 189, 194, 225, 253, 268, 270, 271, 276, 281, 282, 291, 294, 295, 298, 316, 335, 338, 368, 383, 397, 405 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS This sequence has similarities with A005836 and A229037. LINKS Rémy Sigrist, Table of n, a(n) for n = 1..10000 Rémy Sigrist, C# program for A333835 EXAMPLE The first terms, mapped onto a square spiral, are: *---*---*---*--61---*---*---*---* | | * *---*---*--34--33---*--31 * | | | | * * 17---*---*---*---* * * | | | | | | * * 18 *---4---3 * * * | | | | | | | | * * * * 1---2 * 28 * | | | | | | | * * 20 *---*---*---* 27 * | | | | | * * 21--22---*--24---*---* * | | | * *---*---*---*---*---*---*---* | *---*---*---*---*---*---*--80--81 PROG (C#) See Links section. CROSSREFS See A333825 for a similar sequences. Cf. A005836, A174344, A229037, A274923. Sequence in context: A343494 A300855 A353164 * A178683 A111191 A333825 Adjacent sequences: A333832 A333833 A333834 * A333836 A333837 A333838 KEYWORD nonn AUTHOR Rémy Sigrist, Apr 07 2020 STATUS approved

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Last modified December 7 17:25 EST 2022. Contains 358668 sequences. (Running on oeis4.)