id:A093412 - OEIS Search Results

Search: id:A093412

Displaying 1-1 of 1 results found.

page 1

Triangle read by rows: a(n, k) is the numerator of (n+(n-1)+...+(n-k+1))/(1+2+...+k), 0 < k <= n.

+0
9

1, 2, 1, 3, 5, 1, 4, 7, 3, 1, 5, 3, 2, 7, 1, 6, 11, 5, 9, 4, 1, 7, 13, 3, 11, 5, 9, 1, 8, 5, 7, 13, 2, 11, 5, 1, 9, 17, 4, 3, 7, 13, 3, 11, 1, 10, 19, 9, 17, 8, 15, 7, 13, 6, 1, 11, 7, 5, 19, 3, 17, 2, 5, 7, 13, 1, 12, 23, 11, 21, 10, 19, 9, 17, 8, 15, 7, 1, 13, 25, 6, 23, 11, 3, 5, 19, 9, 17, 4 (list; table; graph; listen)

	OFFSET	`1,2`
	COMMENT	`A093415 gives the corresponding denominators.`
	FORMULA	`a(n, k) = (2n+1-k)/gcd(2n+1-k, k+1).`
	CROSSREFS	`Cf. A093413, A093414, A093415.` `Sequence in context: A129322 A089984 A062105 this_sequence A119355 A076110 A117584` `Adjacent sequences: A093409 A093410 A093411 this_sequence A093413 A093414 A093415`
	KEYWORD	`easy,nonn,tabl,frac`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 30 2004`
	EXTENSIONS	`Edited and extended by David Wasserman (wasserma(AT)spawar.navy.mil), Feb 01 2006`

page 1

Search completed in 0.002 seconds

Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

AT&T Labs Research