[seqfan] Re: version 1 or 2?

Marc LeBrun mlb at well.com
Fri Oct 2 15:21:53 CEST 2015


>="юрий герасимов" <2stepan at rambler.ru>

> 
.Dear SeqFans, 

version 1: number of nonprime diviisors d | n such that n/d
> is prime: 0, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 2, 1, 0, 0, 1, 1, 2, 1, 2, 0, 0, 1,
> 2, 0, 0, 1, 2, 1, 3, 1, 1, 0, 0, 0, 2, 1, 0, 0, 2, 1, 3, 1, 2, 2, 0, 1, 2, 0,
> 2, ...

version 2: number of nonprime divisors d | n such that n/d is
> noncomposite: 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 1, 3, 1, 3, 1,
> 1, 1, 3, 1, 1, 2, 3, 1, 4, 1, 2, 1, 1, 1, 3, 1, 1, 1, 3, 1, 4, 1, 3, 3, 1, 1,
> 3, 1, 3 ...

Which version is suitable for OEIS?

Thanks.
> JSG

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Both, please.





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