id:A047140 - OEIS Search Results

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Array read by diagonals: T(h,k)=number of paths consisting of steps from (0,0) to (h,k) such that each step has length 1 directed up or right, and no up-step crosses the line y=4x/3. (Thus a path crosses the line only at lattice points and on right-steps.).

+0
10

1, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 2, 4, 4, 1, 1, 3, 2, 8, 5, 1, 1, 4, 5, 10, 13, 6, 1, 1, 5, 9, 15, 23, 19, 7, 1, 1, 6, 14, 24, 38, 42, 26, 8, 1, 1, 7, 20, 38, 62, 80, 68, 34, 9, 1, 1, 8, 27, 58, 38, 142, 148, 102, 43, 10, 1, 1, 9, 35, 85, 96, 180, 290 (list; table; graph; listen)

	OFFSET	`0,5`
	CROSSREFS	`Adjacent sequences: A047137 A047138 A047139 this_sequence A047141 A047142 A047143` `Sequence in context: A104562 A111603 A136178 this_sequence A047150 A102054 A111604`
	KEYWORD	`nonn,tabl`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu). Definition revised Dec 08 2006`

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.

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