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Search: id:A078879
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| A078879 |
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Triangle of T(n,k) = ceil(k^2/n), 0<k<n. |
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+0
1
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| 0, 1, 0, 1, 2, 0, 1, 1, 3, 0, 1, 1, 2, 4, 0, 1, 1, 2, 3, 5, 0, 1, 1, 2, 3, 4, 6, 0, 1, 1, 2, 2, 4, 5, 7, 0, 1, 1, 1, 2, 3, 4, 6, 8, 0, 1, 1, 1, 2, 3, 4, 5, 7, 9, 0, 1, 1, 1, 2, 3, 4, 5, 6, 8, 10, 0, 1, 1, 1, 2, 3, 3, 5, 6, 7, 9, 11, 0, 1, 1, 1, 2, 2, 3, 4, 5, 7, 8, 10, 12, 0, 1, 1, 1, 2, 2, 3, 4, 5, 6, 8, 9, 11
(list; table; graph; listen)
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OFFSET
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1,5
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EXAMPLE
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0; 1,0; 1,2,0; 1,1,3,0; 1,1,2,4,0; ...
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PROGRAM
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(PARI) T(n, k)=if(n<1|k>=n, 0, ceil(k^2/n))
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CROSSREFS
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Rows sums are in A014811.
Sequence in context: A104578 A064918 A067586 this_sequence A082859 A083537 A135830
Adjacent sequences: A078876 A078877 A078878 this_sequence A078880 A078881 A078882
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KEYWORD
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easy,nonn,tabl
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AUTHOR
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Michael Somos, Dec 13, 2002
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