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A263775
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Triangle read by rows: T(n,k) (n>=0, k>=0) is the number of permutations of n with k alignments.
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0
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1, 1, 2, 3, 3, 4, 8, 12, 5, 15, 35, 45, 20, 6, 24, 72, 140, 198, 180, 100, 7, 35, 126, 308, 588, 924, 1148, 1078, 651, 175, 8, 48, 200, 576, 1316, 2560, 4336, 6272, 7616, 7504, 5768, 3136, 980, 9, 63, 297, 975, 2547, 5697, 11295, 20025, 31644, 44400, 54900
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OFFSET
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0,3
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COMMENTS
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LINKS
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EXAMPLE
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Triangle begins:
1;
1;
2;
3,3;
4,8,12;
5,15,35,45,20;
6,24,72,140,198,180,100;
...
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CROSSREFS
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KEYWORD
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nonn,tabf
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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