0,4
Found by F. Riquelme
Table of n, a(n) for n=0..8.
Intersection of A189359 and A109456.
Sequence in context: A002863 A047693 A212265 * A001532 A109456 A155745
Adjacent sequences: A189357 A189358 A189359 * A189361 A189362 A189363
hard,more,nonn
Fabián Riquelme, Apr 20 2011
approved