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1,1
Table of n, a(n) for n=1..12.
a(4)=5 because we can write
..t...t..
..w...h..
f.o.u.r..
......e..
..o.n.e..
and no smaller square suffices.
a(6) = 8:
...........t.w.o.
...........h.....
.....f.o.u.r.....
...s...n...e.....
.f.i.v.e...e.....
...x............. . - Alois P. Heinz, May 06 2015
Sequence in context: A075260 A054847 A067782 * A266251 A021302 A004649
Adjacent sequences: A035296 A035297 A035298 * A035300 A035301 A035302
more,nonn,word
Mike Keith (domnei(AT)aol.com)
approved