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Search: id:A087867
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| A087867 |
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n^2-79*n+1601 as n runs through the lucky numbers. |
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+0
1
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| 1523, 1373, 1097, 971, 743, 641, 383, 251, 113, 83, 47, 53, 131, 173, 593, 797, 911, 1163, 1301, 1601, 2297, 2903, 3581, 4331, 5153, 5741, 7697, 8051, 8783, 9161, 10343, 12473, 14321, 15293, 16811, 17333, 22391, 23603, 24221, 26123, 27431, 29453
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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C. Stanley Ogilvy and John T. Anderson, Excursions in Number Theory, Dover. New York: 1988
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EXAMPLE
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Using 16th Lucky Number (A000959), 67^2-79*67+1601 returns 797.
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PROGRAM
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{PARI} q=listcreate(57); listinsert(q, 1, 1); listinsert(q, 3, 2); .. listinsert(q, 303, 57); for(k=1, 57, c=q[k]^2-79*q[k]+1601; write("A087867.txt", c)) - Bill McEachen (bmceache(AT)centralsan.dst.ca.us), May 24 2006
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CROSSREFS
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Cf. A000959.
Sequence in context: A103962 A031756 A031627 this_sequence A073104 A060566 A031537
Adjacent sequences: A087864 A087865 A087866 this_sequence A087868 A087869 A087870
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KEYWORD
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easy,nonn
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AUTHOR
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Bill McEachen (bmceache(AT)centralsan.dst.ca.us), Oct 10 2003
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EXTENSIONS
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Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 18 2003
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