4,1

Value 15 starts at n=10 and continues through at least n=60.

Table of n, a(n) for n=4..60.

Maximal zeros solution for n=10

...........0

..........0.0

.........0.0.1

........0.1.0.0

.......1.0.0.0.0

......0.0.0.0.1.0

.....0.0.0.1.0.0.0

....0.0.1.0.0.0.0.1

...0.1.0.0.0.0.1.0.0

..1.0.0.0.0.1.0.0.0.0

Sequence in context: A275124 A282768 A217429 * A044242 A044623 A063345

Adjacent sequences: A154028 A154029 A154030 * A154032 A154033 A154034

nonn

R. H. Hardin Jan 04 2009

approved