id:A088860 - OEIS Search Results

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Least number m divisible by 4 such that omega(m)=n, where omega=A001221.

+0
2

4, 12, 60, 420, 6420, 6060, 1021020, 19399380, 446185740, 12939386460, 401120980260, 14841476269620, 6085005270554420, 26165522663340060, 1229779565176982820, 65178316954380089460, 3845520700308425278140 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Refers to the least number which is the leg of exactly 2^(n-1) primitive Pythagorean triangles.`
	FORMULA	`a(n)=2#p(n)=2A002110(n)`
	CROSSREFS	`Sequence in context: A054719 A083484 A097250 this_sequence A071769 A000843 A121771` `Adjacent sequences: A088857 A088858 A088859 this_sequence A088861 A088862 A088863`
	KEYWORD	`nonn`
	AUTHOR	`Lekraj Beedassy (blekraj(AT)yahoo.com), Nov 25 2003`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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