[seqfan] Q on multiplicative functions

Richard Mathar mathar at strw.leidenuniv.nl
Mon Feb 7 14:58:34 CET 2011


Are these multiplicative functions?

<a href="http://oeis.org/A151764">A151764</a>
  This is a repeated application of a multiplicative function

<a href="http://oeis.org/A157261">A157261</a>
  lengths of blocks of 2 in Gijswijt's sequence

<a href="http://oeis.org/A159631">A159631</a>
<a href="http://oeis.org/A159634">A159634</a> 1 ?
  dimension of a space of modular forms

<a href="http://oeis.org/A160467">A160467</a>
  2 to some power involving sigma() and oddness
 (this might be a product of two multiplicative functions...)

<a href="http://oeis.org/A163659">A163659</a>
  Defined as a logarithmic g.f. of Stern's diatomic series

I am asking because they do not have the keyword:mult yet.



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