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A140214 Prod(h: h=5 mod 6 and h|n). 5
1, 1, 1, 1, 5, 1, 1, 1, 1, 5, 11, 1, 1, 1, 5, 1, 17, 1, 1, 5, 1, 11, 23, 1, 5, 1, 1, 1, 29, 5, 1, 1, 11, 17, 175, 1, 1, 1, 1, 5, 41, 1, 1, 11, 5, 23, 47, 1, 1, 5, 17, 1, 53, 1, 55, 1, 1, 29, 59, 5, 1, 1, 1, 1, 325, 11, 1, 17, 23, 175, 71, 1, 1, 1, 5, 1, 847, 1, 1, 5, 1, 41, 83, 1, 85, 1, 29, 11 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

Not multiplicative: a(5)*a(7) <> a(35). - R. J. Mathar, Oct 08 2011

LINKS

Table of n, a(n) for n=1..88.

MAPLE

A140214 := proc(n) a := 1 ; for h in numtheory[divisors](n) do if (h mod 6) = 5 then a := a*h: fi; od: a; end:

seq(A140214(n), n=1..120) ; # R. J. Mathar, Jun 24 2009

CROSSREFS

Sequence in context: A170818 A046622 A170825 * A071020 A046601 A101025

Adjacent sequences:  A140211 A140212 A140213 * A140215 A140216 A140217

KEYWORD

nonn,easy

AUTHOR

R. J. Mathar, Jun 27 2008

STATUS

approved

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Last modified November 20 10:31 EST 2017. Contains 294963 sequences.