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Search: id:A071958
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| A071958 |
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Numbers n such that sum( i=1, n, K(n,i) ) < 0 where K(x,y) is the Kronecker symbol (x/y). |
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+0
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| 67, 99, 115, 147, 163, 187, 267, 275, 283, 307, 315, 355, 379, 403, 427, 475, 507, 523, 531, 595, 619, 643, 675, 747, 763, 787, 883, 907, 931, 947, 955, 975, 1003, 1027, 1107, 1123, 1147, 1179, 1203, 1267, 1275, 1347, 1363, 1387, 1395, 1435, 1467, 1475
(list; graph; listen)
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OFFSET
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1,1
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PROGRAM
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(PARI) for(n=1, 1800, if(sum(i=1, n, kronecker(n, i))<0, print1(n, ", ")))
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CROSSREFS
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Sequence in context: A130059 A039539 A127732 this_sequence A128197 A140541 A136077
Adjacent sequences: A071955 A071956 A071957 this_sequence A071959 A071960 A071961
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KEYWORD
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easy,nonn
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AUTHOR
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Benoit Cloitre (benoit7848c(AT)orange.fr), Jun 16 2002
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