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Search: id:A116188
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| A116188 |
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Triangle T(n,k), 0<=k<=n : T(n,k)is smalest number such that T(n,k)>=T(n-1,k-1), T(n,k)>=T(n-1,k), T(n,k)and T(n-1,k-1)+T(n-1,k) have the same parity, T(0,0)=1 . |
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+0
1
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| 1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 4, 4, 1, 1, 5, 4, 4, 5, 1, 1, 6, 5, 4, 5, 6, 1, 1, 7, 7, 5, 5, 7, 7, 1, 1, 8, 8, 8, 6, 8, 8, 8, 1, 1, 9, 8, 8, 8, 8, 8, 8, 9, 1, 1, 10, 9, 8, 8, 8, 8, 8, 9, 10, 1, 1, 11, 11, 9, 8, 8, 8, 8, 9, 11, 11, 1, 1, 12, 12, 12, 9, 8, 8, 8, 9, 12, 12, 12, 1, 1, 13, 12, 12, 13, 9
(list; table; graph; listen)
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OFFSET
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0,5
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COMMENT
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Sequence read mod 2 gives A047999 .
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EXAMPLE
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Triangle begins:
1;
1, 1;
1, 2, 1;
1, 3, 3, 1;
1, 4, 4, 4, 1;
1, 5, 4, 4, 5, 1;
1, 6, 5, 4, 5, 6, 1;
1, 7, 7, 5, 5, 7, 7, 1;
1, 8, 8, 8, 6, 8, 8, 8, 1;
1, 9, 8, 8, 8, 8, 8, 8, 9, 1;
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CROSSREFS
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Diagonals : A000012, A000027, A098181, A127932, A127934.
Sequence in context: A110570 A082905 A141524 this_sequence A049695 A096589 A099573
Adjacent sequences: A116185 A116186 A116187 this_sequence A116189 A116190 A116191
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KEYWORD
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nonn,tabl
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AUTHOR
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Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Apr 08 2007
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