[seqfan] Re: A175388(?)

[Richard Mathar]

zs> Date: Sat, 24 Apr 2010 20:43:36 -0700 (PDT)
zs> From: zak seidov <zakseidov at yahoo.com>
zs> To: seqfaneu <seqfan at seqfan.eu>
zs> Subject: [seqfan]  A175388(?)
zs> ...
zs> %e A175388 a(0)=1 because 1 -> 1 (0 iterations)
zs> %e A175388 a(1)=2 because 2 -> 4 (1 iteration)
zs> %e A175388 a(2)=11 because 11 -> 2 -> 4 (2 iterations)
zs> %e A175388 a(3)=23 because 23 -> 13 -> 10 -> 1 (3 iterations)
zs> %e A175388 a(4)=19 because 19 -> 82 -> 20 -> 4 (4 iterations). 
zs> %Y A175388 Cf. A002275, A176709. 

A176709 shouldn't be referenced because it's a duplicate of A003621
and threatened to be eliminated . See
http://www.strw.leidenuniv.nl/~mathar/progs/oeisDupl 
as usual.