[seqfan] Re: Divisibilty sequences

[Maximilian Hasler]

IMHO the property of being division sequence also merits a keyword ("divs" ?)

Maximilian
PS: Great work from RKG. 2 more relations:
A106328 = 3*A001109
A005319 = 4*A001109


On Sat, Mar 28, 2009 at 3:33 PM, Richard Guy <rkg at cpsc.ucalgary.ca> wrote:
> Towards a multiplicative theory of divisibility sequences.
>
> A001542 = 2 * (A001109)
> A003690 = 3 * (A004254)^2
> A003696 = (A001353) * (b=14,c=68)  latter not in OEIS?
> A003733 = 5 * (A143699)^2
> A003739 = 5 * (A001906) * (A006238)
> A003745 = 3 * 5^2 * (A004254) * (A004187)^3
> A003751 = 5^3 * (A004187)^4
> A003753 = 2^2 * (A001109) * (A001353)^2
>         = 2 * (A001542) * (A001353)^2
> A003755 = (A001109) * (A001906)^2
> A003761 = (A001906) * (A004254) * (A001109)
> A003767 = 2^3 * (A001353) * (A001109)^2
> A003773 = 2 * (A001542)^3 = 2^4 * (A001109)^3
> A092136 = (A004187) * (A001906)^3
>
> E&OE     R,
>
>
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