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Search: id:A054237
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| A054237 |
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Pair addition table cast as diagonal numbers. |
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+0
1
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| 0, 1, 1, 2, 3, 2, 3, 4, 4, 3, 4, 6, 5, 6, 4, 5, 7, 7, 7, 7, 5, 6, 8, 8, 10, 8, 8, 6, 7, 10, 9, 11, 11, 9, 10, 7, 8, 11, 11, 12, 12, 12, 11, 11, 8, 9, 12, 12, 15, 13, 13, 15, 12, 12, 9, 10, 13, 13, 16, 16, 14, 16, 16, 13, 13, 10, 11, 15, 14, 17, 17, 17, 17, 17, 17, 14, 15, 11, 12, 16, 16
(list; table; graph; listen)
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OFFSET
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0,4
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COMMENT
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Cast pairs 0,0 1,0 0,1 2,0 1,1... as 0,1,2,3,4... Sequence shadows pair addition table.
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EXAMPLE
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a(1,1)=3 because 1 shadows (1,0) and 3 shadows (2,0) and (1,0)+(1,0)=(2,0)
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CROSSREFS
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Sequence in context: A124525 A106788 A123175 this_sequence A129600 A081388 A002372
Adjacent sequences: A054234 A054235 A054236 this_sequence A054238 A054239 A054240
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KEYWORD
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easy,nonn,tabl
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AUTHOR
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Marc LeBrun (mlb(AT)well.com), Feb 07 2000
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