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A194672
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Triangle read by rows: number of genlex Gray paths on subcubes that use a certain restricted set of transformations.
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1
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1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 5, 10, 4, 1, 1, 6, 36, 35, 5, 1, 1, 9, 310, 4630, 218, 6, 1
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OFFSET
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0,5
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COMMENTS
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See Knuth Vol. 4A page 737 for precise definition.
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REFERENCES
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D. E. Knuth, The Art of Computer Programming, vol. 4A, Combinatorial Algorithms, Section 7.2.1.3 (p. 737).
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LINKS
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EXAMPLE
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Triangle begins:
1
1 1
1 2 1
1 3 3 1
1 5 10 4 1
1 6 36 35 5 1
1 9 310 4630 218 6 1
...
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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