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A111672
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Array T(n,k) = A153277(n-1,k) = A144150(n,k-1) read by downwards antidiagonals.
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3
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1, 1, 1, 1, 2, 1, 1, 3, 5, 1, 1, 4, 12, 15, 1, 1, 5, 22, 60, 52, 1, 1, 6, 35, 154, 358, 203, 1, 1, 7, 51, 315, 1304, 2471, 877, 1, 1, 8, 70, 561, 3455, 12915, 19302, 4140, 1
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OFFSET
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1,5
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COMMENTS
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Column k is obtained by taking the k-th matrix power of the triangle A008277 and multiplying from the right with the column vector [1,0,0,0,....].
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LINKS
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EXAMPLE
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The array starts
1, 1, 1, 1, 1, 1, ...
1, 2, 3, 4, 5, 6, ...
1, 5, 12, 22, 35, 51, ...
1, 15, 60, 154, 315, 561, ...
1, 52, 358, 1304, 3455, 7556, ...
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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