OFFSET
0,8
COMMENTS
Conjecture: a(n) > 0 for all n > 82.
FORMULA
G.f.: (Sum_{k>=1} x^A030229(k))^2.
EXAMPLE
a(16) = 4 because we have [15, 1], [10, 6], [6, 10] and [1, 15].
MATHEMATICA
nmax = 100; CoefficientList[Series[(Sum[Boole[MoebiusMu[k] == 1] x^k, {k, 1, nmax}])^2, {x, 0, nmax}], x]
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Apr 26 2017
STATUS
approved