id:A091453 - OEIS Search Results

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Triangular array T(h,k) read by rows in which row h consists of the numbers Floor[2h/k], k=1,2,...,2h+1.

+0
5

0, 0, 2, 1, 0, 4, 2, 1, 1, 0, 6, 3, 2, 1, 1, 1, 0, 8, 4, 2, 2, 1, 1, 1, 1, 0, 10, 5, 3, 2, 2, 1, 1, 1, 1, 1, 0, 12, 6, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 0, 14, 7, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 0, 16, 8, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 18, 9, 6, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 20, 10, 6 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`First terms in period of continued fraction of sqrt(n).` `Similar to A013942, except that here, period lengths of continued fractions all sqrt(n) are included, those of the squares being 0.`
	EXAMPLE	`Northwest corner of array:` `0` `0 2 1` `0 4 2 1 1` `0 6 3 2 1 1 1` `0 8 4 2 2 1 1 1 1`
	CROSSREFS	`Cf. A013942, A091449.` `Sequence in context: A138002 A062296 A140649 this_sequence A062173 A004558 A129699` `Adjacent sequences: A091450 A091451 A091452 this_sequence A091454 A091455 A091456`
	KEYWORD	`nonn,tabf`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu), Feb 03 2004`

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Last modified December 20 13:54 EST 2009. Contains 171081 sequences.

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