id:A140215 - OEIS Search Results

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A140213(n)*A140214(n).

+0
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1, 1, 1, 1, 5, 1, 7, 1, 1, 5, 11, 1, 13, 7, 5, 1, 17, 1, 19, 5, 7, 11, 23, 1, 125, 13, 1, 7, 29, 5, 31, 1, 11, 17, 1225, 1, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 1, 343, 125, 17, 13, 53, 1, 3025, 7, 19, 29, 59, 5, 61, 31, 7, 1, 4225, 11, 67, 17, 23, 1225, 71, 1, 73, 37, 125, 19 (list; graph; listen)

	OFFSET	`1,5`
	MAPLE	`A140213 := proc(n) a := 1 ; for h in numtheory[divisors](n) do if (h mod 6) = 1 then a := ah: fi; od: a; end: A140214 := proc(n) a := 1 ; for h in numtheory[divisors](n) do if (h mod 6) = 5 then a := ah: fi; od: a; end: A140215 := proc(n) A140214(n)*A140213(n) ; end: seq(A140215(n), n=1..120) ; [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 24 2009]`
	CROSSREFS	`Sequence in context: A052345 A111008 A065330 this_sequence A068328 A109375 A051712` `Adjacent sequences: A140212 A140213 A140214 this_sequence A140216 A140217 A140218`
	KEYWORD	`nonn`
	AUTHOR	`R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 27 2008`
	EXTENSIONS	`More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 24 2009`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

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