id:A046573 - OEIS Search Results

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First denominator and then numerator of the central elements of the 1/4-Pascal triangle (by row).

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1, 1, 4, 1, 2, 5, 2, 19, 1, 35, 2, 259, 1, 483, 1, 1815, 1, 6864, 2, 52195, 1, 99671, 1, 382109, 1, 1469650, 1, 5668327, 1, 21915550, 1, 84913470, 1, 329624730, 2, 2563431075, 1, 4991324415, 1, 19463777025, 1, 75992317170, 1, 297026449005, 1 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`1/1; 1/1 1/1; 1/1 1/4 1/1; 1/1 5/4 5/4 1/1; 1/1 9/4 5/2 9/4 1/1; 1/1 13/4 19/4 19/4 13/4 1/1; 1/1 17/4 8/1 19/2 8/1 17/4 1/1; 1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...`
	CROSSREFS	`Cf. A046563.` `Sequence in context: A082903 A154589 A125560 this_sequence A006287 A087225 A076064` `Adjacent sequences: A046570 A046571 A046572 this_sequence A046574 A046575 A046576`
	KEYWORD	`nonn`
	AUTHOR	`Mohammad K. Azarian (ma3(AT)evansville.edu)`
	EXTENSIONS	`More terms from James A. Sellers (sellersj(AT)math.psu.edu), Dec 14 1999`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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