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A090844
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Square array of numbers read by antidiagonals with T(n,k)=((k+3)(k+1)^n-2*0^n)/(k+1)
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0
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1, 1, 3, 1, 4, 3, 1, 5, 8, 3, 1, 6, 15, 16, 3, 1, 7, 24, 45, 32, 3, 1, 8, 35, 96, 135, 64, 3, 1, 9, 48, 175, 384, 405, 128, 3, 1, 10, 63, 288, 875, 1536, 1215, 256, 3, 1, 11, 80, 441, 1728, 4375, 6144, 3645, 512, 3, 1, 12, 99, 640, 3087, 10368, 21875, 24576, 10935, 1024, 3, 1
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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COMMENTS
| Rows are inverse binomial transforms of rows of array A090842.
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REFERENCES
| L. He, X. Liu and G. Strang, (2003) Trees with Cantor Eigenvalue Distribution. Studies in Applied Mathematics 110 (2), 123-138
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EXAMPLE
| Rows begin
1 3 3 3 3 ...
1 4 8 16 32 ...
1 5 15 45 135 ...
1 6 24 96 384 ...
1 7 35 175 875 ...
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CROSSREFS
| Sequence in context: A055171 A101038 A064883 * A008314 A104568 A030758
Adjacent sequences: A090841 A090842 A090843 * A090845 A090846 A090847
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KEYWORD
| easy,nonn,tabl
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AUTHOR
| Paul Barry (pbarry(AT)wit.ie), Dec 09 2003
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