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A328071
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Difference triangle for A327460 read by upwards antidiagonals.
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2
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1, 2, 3, 4, 6, 9, -14, -10, -4, 5, 35, 21, 11, 7, 12, -76, -41, -20, -9, -2, 10, 161, 85, 44, 24, 15, 13, 23, -357, -196, -111, -67, -43, -28, -15, 8, 831, 474, 278, 167, 100, 57, 29, 14, 22, -1955, -1124, -650, -372, -205, -105, -48, -19, -5, 17, 4508, 2553
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refs;
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OFFSET
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1,2
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COMMENTS
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By definition, all terms are distinct.
Conjecture: every positive number appears. (Probably false, see next comment. - N. J. A. Sloane, Oct 09 2019)
239, 776, 2470, and 7805 are the smallest numbers that do not appear in the first 10^4, 10^5, 10^6, and 10^7 terms respectively. - Peter Kagey, Oct 05 2019. (In other words, 239, 776, 2470, and 7805 probably will never appear. - N. J. A. Sloane, Oct 09 2019)
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LINKS
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EXAMPLE
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The difference triangle for A327460 begins:
1, 3, 9, 5, 12, 10, 23, 8, ...
2, 6, -4, 7, -2, 13, -15, ...
4, -10, 11, -9, 15, -28, ...
-14, 21, -20, 24, -43, ...
35, -41, 44, -67, ...
-76, 85, -111, ...
161, -196, ...
-357, ...
...
Read this by upwards antidiagonals.
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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