id:A059591 - OEIS Search Results

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Square-free part of n^2+1.

+0
4

1, 2, 5, 10, 17, 26, 37, 2, 65, 82, 101, 122, 145, 170, 197, 226, 257, 290, 13, 362, 401, 442, 485, 530, 577, 626, 677, 730, 785, 842, 901, 962, 41, 1090, 1157, 1226, 1297, 1370, 5, 1522, 1601, 2, 1765, 74, 1937, 2026, 2117, 2210, 2305, 2402, 2501, 2602 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`a(n)=A007913[n^2+1], a(n)*A059592[n]^2 = n^2+1 Related to period-1 continued fractions [z,z,z,...]`
	EXAMPLE	`a(7)=2 since 7^2+1 = 50 = 252 = (5^2)2`
	CROSSREFS	`A007913, A059592, A000188.` `Sequence in context: A078393 A100292 A078325 this_sequence A082607 A159547 A002522` `Adjacent sequences: A059588 A059589 A059590 this_sequence A059592 A059593 A059594`
	KEYWORD	`easy,nonn`
	AUTHOR	`Marc LeBrun (mlb(AT)well.com), Jan 25 2001`

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

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