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A157429
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Lower left-hand y-coordinates of invisible 2x2 squares with 0 < x < y.
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12
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20, 98, 114, 368, 494, 474, 194, 258, 264, 224, 374, 740, 740, 648, 322, 376, 398, 1000, 1000, 440, 986, 608, 754, 1000, 544, 644, 1034, 1274, 406, 1274, 152, 644, 1274, 50, 1220, 484, 34, 804, 714, 440, 594, 1014, 220, 1000, 1182, 370, 390, 574
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..48.
Eric Weisstein's World of Mathematics, Visible Point
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EXAMPLE
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{54, 20}, {174, 98}, {550, 114}, {574, 368}, {588, 494}, {608, 474}, ...
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CROSSREFS
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Cf. A157426, A157427, A157428.
Sequence in context: A264424 A039610 A177498 * A200470 A128676 A039455
Adjacent sequences: A157426 A157427 A157428 * A157430 A157431 A157432
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KEYWORD
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nonn
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AUTHOR
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Eric W. Weisstein, Mar 01 2009
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STATUS
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approved
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