[seqfan] Re: new sequence

[zak seidov]

 It is just a twin version of A129767, nothing special.
    On Friday, March 10, 2023 at 01:44:52 PM GMT+2, Olivier Gerard <olivier.gerard at gmail.com> wrote:  
 
 Dear Zak,

What is the purpose of this sequence ?

Olivier


On Fri, Mar 10, 2023 at 2:43 PM zak seidov via SeqFan <seqfan at list.seqfan.eu>
wrote:

> NAME Interleaved semiprimes and  primes
> DATA
> 4, 2, 6, 3, 9, 5, 10, 7, 14, 11, 15, 13, 21, 17, 22, 19, 25, 23, 26, 29,
> 33,
>  31, 34, 37, 35, 41, 38, 43, 39, 47, 46, 53, 49, 59, 51, 61, 55, 67, 57,
>  71, 58, 73, 62, 79, 65, 83, 69, 89, 74, 97, 77, 101, 82, 103, 85, 107,
>  86, 109, 87, 113 COMMENTS For odd n's a(n) = A129767(n+1), for even
> n's  a(n) = A129767(n-1),
> Cf. A129767
> more(?).
>
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