0,2

Least k such that A075425(k) = n;

Observations: (a(n) mod 2) = ((n+1) mod 2); frequently a(2*k)=a(2*k-1)+1 and a(2*k+1)=a(2*k)*2: a(n)=A075427(n) for n<=9.

Also A110157(a(n)) = n+1 and A110157(m) < n+1 for m < a(n).

Sequence in context: A147303 A075427 A066880 this_sequence A018606 A117087 A000837

Adjacent sequences: A075423 A075424 A075425 this_sequence A075427 A075428 A075429

nonn

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 15 2002