id:A065337 - OEIS Search Results

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a(n) is the smallest number not already used such that Sum_{m = 0 .. n-1} a(m)*a(m+1) is a square.

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1, 4, 3, 11, 16, 19, 33, 21, 31, 96, 13, 65, 63, 55, 145, 336, 40, 240, 53, 429, 272, 376, 130, 380, 108, 78, 1368, 49, 235, 288, 196, 627, 59, 1360, 52, 738, 192, 312, 75, 157, 2432, 81, 313, 3040, 209, 603, 1120, 45, 281, 4448, 2847, 357, 1265, 784, 1153, 9495 (list; graph; listen)

	OFFSET	`0,2`
	EXAMPLE	`a(4) = 5 because a(0)a(1)+a(1)a(2)+a(2)a(3)+a(3)a(4) = 14+43+311+1116 = 225`
	CROSSREFS	`A065336` `Adjacent sequences: A065334 A065335 A065336 this_sequence A065338 A065339 A065340` `Sequence in context: A086564 A080777 A001166 this_sequence A072802 A093726 A126604`
	KEYWORD	`nonn`
	AUTHOR	`Jonathan Ayres (jonathan.ayres(AT)btinternet.com), Oct 29 2001`

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Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.

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