1,2

Note that a(4n)=a(4n-2), a(4n-1)=a(4n-3).

Table of n, a(n) for n=1..28.

A145818 A145812 A145819 A145822

Sequence in context: A139426 A143384 A046611 * A101692 A281105 A327283

Adjacent sequences: A145822 A145823 A145824 * A145826 A145827 A145828

nonn

Vladimir Shevelev, Oct 20 2008

approved