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Search: id:A108497
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| A108497 |
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Triangle read by rows: T(n,k) = k^(n+1)-k mod n, showing 1<=k<=n. |
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+0
6
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| 0, 0, 0, 0, 2, 0, 0, 2, 0, 0, 0, 2, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 2, 6, 5, 6, 2, 0, 0, 6, 0, 4, 0, 2, 0, 0, 0, 5, 6, 0, 8, 3, 0, 2, 0, 0, 6, 4, 0, 0, 0, 6, 4, 0, 0, 0, 2, 6, 1, 9, 8, 9, 1, 6, 2, 0, 0, 6, 0, 0, 0, 6, 0, 0, 0, 6, 0, 0, 0, 2, 6, 12, 7, 4, 3, 4, 7, 12, 6, 2, 0, 0, 6, 10, 4, 8, 0, 0, 0, 6, 10, 4, 8
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OFFSET
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1,5
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FORMULA
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T(n, k+n)=T(n, k). T(n, 0)=T(n, 1)=T(n, n)=T(1, k)=T(2, k)=T(6, k)=T(42, k)=T(1806, k)=0.
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EXAMPLE
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Rows start: 0; 0,0; 0,2,0; 0,2,0,0; 0,2,1,2,0; 0,0,0,0,0,0; 0,2,6,5,6,2,0; etc.
T(7,3) = 3^(7+1)-3 mod 7 = 6558 mod 7 = 6.
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CROSSREFS
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Cf. A014117, A108495, A108496, A108498, A108499.
Sequence in context: A134013 A136521 A066448 this_sequence A108498 A130209 A109127
Adjacent sequences: A108494 A108495 A108496 this_sequence A108498 A108499 A108500
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KEYWORD
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nonn,tabl
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AUTHOR
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Henry Bottomley (se16(AT)btinternet.com), Jun 06 2005
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