%I #10 Mar 11 2015 11:01:35
%S 1,1,2,3,2,1,1,2,2,1,1,1,1,2,2,1,1,2,1,1,1,5,2,1,1,7,1,1,5,2,2,1,1,1,
%T 2,1,1,1,1,2,1,2,4,1,2,1,6,1,1,5,2,1,2,1,1,1,2,2,1,2,4,3,2,3,3,1,4,1,
%U 1,2,1,1,1,1,2,1,3,1,1,1,3,1,1,1,1,1,1,8,1,1,1,1,5
%N Length of odd/even runs in A061419, where a(2n)=length of n-th run of even numbers in A061419 and a(2n-1)=length of n-th run of odd numbers.
%C Parity of A061419(n) can be fully reconstructed from this sequence.
%o (PARI) p=1; c=0; r=0; for(n=1, 1000, p=p+ceil(p/2); if(p%2==r, c=c+1, print1(c", "); r=!r; c=1))
%K nonn,easy
%O 1,3
%A _Ralf Stephan_, Jun 02 2003
|