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A048152
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Triangular array T read by rows: T(n,k)=k^2 mod n, for k=1,2,...,n, n=1,2,...
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4
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0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 4, 4, 1, 0, 1, 4, 3, 4, 1, 0, 1, 4, 2, 2, 4, 1, 0, 1, 4, 1, 0, 1, 4, 1, 0, 1, 4, 0, 7, 7, 0, 4, 1, 0, 1, 4, 9, 6, 5, 6, 9, 4, 1, 0, 1, 4, 9, 5, 3, 3, 5, 9, 4, 1, 0, 1, 4, 9, 4, 1, 0, 1, 4, 9, 4, 1, 0, 1, 4, 9, 3, 12, 10, 10, 12, 3, 9, 4, 1, 0
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,12
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LINKS
| T. D. Noe, Rows n=1..100 of triangle, flattened
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EXAMPLE
| Rows:
0;
1,0;
1,1,0;
1,0,1,0;
1,4,4,1,0;
1 4,3,4,1,0;
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MATHEMATICA
| Flatten[Table[PowerMod[k, 2, n], {n, 15}, {k, n}]] (* From Harvey P. Dale, June 20 2011 *)
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CROSSREFS
| Cf. A060036.
Sequence in context: A204384 A102412 A185057 * A070430 A163353 A164612
Adjacent sequences: A048149 A048150 A048151 * A048153 A048154 A048155
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KEYWORD
| nonn,tabl,nice,easy
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AUTHOR
| Clark Kimberling (ck6(AT)evansville.edu)
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