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Search: id:A154312
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| A154312 |
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Triangle T(n,k), 0<=k<=n, read by rows, given by [0,1/2,-1/2,0,0,0,0,0,0,0,...] DELTA [2,-1/2,-1/2,2,0,0,0,0,0,0,0 ...] where DELTA is the operator defined in A084938 . |
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+0
1
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| 1, 0, 2, 0, 1, 3, 0, 0, 3, 5, 0, 0, 0, 7, 9, 0, 0, 0, 0, 15, 17, 0, 0, 0, 0, 0, 31, 33, 0, 0, 0, 0, 0, 0, 63, 65, 0, 0, 0, 0, 0, 0, 0, 127, 129, 0, 0, 0, 0, 0, 0, 0, 0, 255, 257, 0, 0, 0, 0, 0, 0, 0, 0, 0, 511, 513, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1023, 1025, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2047
(list; table; graph; listen)
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OFFSET
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0,3
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COMMENT
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Column sums : A003945 .
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FORMULA
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Sum_{k, 0<=k<=n}T(n,k)*x^(n-k)= A040000(n), A094373(n), A000079(n), A083329(n), A095121(n), A154117(n), A131128(n), A154118(n), A131130(n), A154251(n), A154252(n) for x = -1,0,1,2,3,4,5,6,7,8,9 respectively .
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EXAMPLE
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Triangle begins : 1 ; 0,2 ; 0,1,3 ; 0,0,3,5 ; 0,0,0,7,9 ; 0,0,0,0,15,17 ; ...
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CROSSREFS
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Sequence in context: A062283 A136493 A132213 this_sequence A119900 A141097 A096335
Adjacent sequences: A154309 A154310 A154311 this_sequence A154313 A154314 A154315
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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), Jan 07 2009
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