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Search: id:A008865
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| -1, 2, 7, 14, 23, 34, 47, 62, 79, 98, 119, 142, 167, 194, 223, 254, 287, 322, 359, 398, 439, 482, 527, 574, 623, 674, 727, 782, 839, 898, 959, 1022, 1087, 1154, 1223, 1294, 1367, 1442, 1519, 1598, 1679, 1762, 1847, 1934, 2023, 2114, 2207
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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For n>=2, least m>=1 such that f(m,n)=0 where f(m,n)=sum(i=0,m,sum(k=0,i,(-1)^k*(floor(i/n^k)-n*floor(i/n^(k+1))))) - Benoit Cloitre (benoit7848c(AT)orange.fr), May 02 2004
For n=>3, the a(n)-th row of Pascal's triangle always contains a triple forming an arithmetic progression. - Lekraj Beedassy (blekraj(AT)yahoo.com), Jun 03 2004
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LINKS
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Eric Weisstein's World of Mathematics, Near-Square Prime
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MAPLE
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with(combinat, fibonacci):seq(fibonacci(3, i)-3, i=1..47); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 20 2008
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CROSSREFS
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Adjacent sequences: A008862 A008863 A008864 this_sequence A008866 A008867 A008868
Sequence in context: A018349 A018363 A087324 this_sequence A018392 A051640 A119354
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KEYWORD
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sign,easy
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AUTHOR
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njas, R. K. Guy
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