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A096103
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Table read by rows: row n contains the quadratic residues modulo n which are coprime to n.
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0
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1, 1, 1, 1, 4, 1, 1, 2, 4, 1, 1, 4, 7, 1, 9, 1, 3, 4, 5, 9, 1, 1, 3, 4, 9, 10, 12, 1, 9, 11, 1, 4, 1, 9, 1, 2, 4, 8, 9, 13, 15, 16, 1, 7, 13, 1, 4, 5, 6, 7, 9, 11, 16, 17, 1, 9, 1, 4, 16, 1, 3, 5, 9, 15, 1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 1, 1, 4, 6, 9, 11, 14, 16, 19, 21, 24, 1, 3, 9, 17, 23, 25, 1, 4
(list; graph; refs; listen; history; internal format)
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OFFSET
| 2,5
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COMMENTS
| Each '1' begins a row.
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LINKS
| Eric Weisstein's World of Mathematics, Quadratic Residue
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PROG
| (PARI) maybesqgcd1(n) = { for(x=2, n, b=floor(x/2); a=vector(b+1); for(y=1, b, z=y^2%x; if(z<>0, a[y]=z; ) ); s=vecsort(a); c=1; for(j=2, b+1, if(s[j]<>s[j-1], c++; if(gcd(x, s[j])==1, print1(s[j]", ")) ) ); ) }
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CROSSREFS
| Sequence in context: A100261 A016526 A030747 * A204456 A143441 A016527
Adjacent sequences: A096100 A096101 A096102 * A096104 A096105 A096106
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KEYWORD
| nonn,tabf
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AUTHOR
| Cino Hilliard (hillcino368(AT)gmail.com), Jul 21 2004
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EXTENSIONS
| Edited by Don Reble (djr(AT)nk.ca), Apr 16 2007
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