id:A052174 - OEIS Search Results

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Triangle of numbers arising in enumeration of walks on square lattice.

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1, 1, 1, 3, 2, 1, 6, 8, 3, 1, 20, 20, 15, 4, 1, 50, 75, 45, 24, 5, 1, 175, 210, 189, 84, 35, 6, 1, 490, 784, 588, 392, 140, 48, 7, 1, 1764, 2352, 2352, 1344, 720, 216, 63, 8, 1, 5292, 8820, 7560, 5760, 2700, 1215, 315, 80, 9, 1 (list; table; graph; listen)

	OFFSET	`0,4`
	LINKS	`R. K. Guy, Catwalks, Sandsteps and Pascal Pyramids, J. Integer Seqs., Vol. 3 (2000), #00.1.6`
	EXAMPLE	`1; 1 1; 3 2 1; 6 8 3 1; 20 20 15 4 1; 50 75 45 24 5 1; 175 210 189 84 35 6 1; ...`
	CROSSREFS	`Adjacent sequences: A052171 A052172 A052173 this_sequence A052175 A052176 A052177` `Sequence in context: A139624 A132276 A114586 this_sequence A111049 A088617 A008276`
	KEYWORD	`nonn,tabl,easy,nice`
	AUTHOR	`njas, Jan 26 2000`

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.

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