id:A047110 - OEIS Search Results

Search: id:A047110

Displaying 1-1 of 1 results found.

page 1

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=2x/3. (Thus a path crosses the line only at lattice points and on right-steps.).

+0
15

1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 3, 2, 3, 1, 1, 4, 5, 5, 4, 1, 1, 5, 9, 10, 9, 5, 1, 1, 6, 14, 19, 10, 14, 6, 1, 1, 7, 20, 33, 29, 24, 20, 7, 1, 1, 8, 27, 53, 62, 29, 44, 27, 8, 1, 1, 9, 35, 80, 115, 91, 73, 71, 35, 9, 1, 1, 10, 44, 115, 195, 206, 164 (list; table; graph; listen)

	OFFSET	`0,8`
	COMMENT	`T is the transpose of the array in A125778.`
	EXAMPLE	`Diagonals (beginning on row 0): {1}; {1,1}; {1,1,1}; {1,2,2,1};...`
	CROSSREFS	`Cf. A125778.` `Adjacent sequences: A047107 A047108 A047109 this_sequence A047111 A047112 A047113` `Sequence in context: A050176 A047130 A125778 this_sequence A093869 A057431 A057060`
	KEYWORD	`nonn,tabl`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu). Definition revised Dec 08 2006`

page 1

Search completed in 0.002 seconds

Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.

AT&T Labs Research