OFFSET
1,3
EXAMPLE
a(8) = #{3+3+1+1, 3+1+1+1+1+1, 1+1+1+1+1+1+1+1} = 3.
MATHEMATICA
Table[Count[IntegerPartitions[n], _?(AllTrue[#, OddQ]&&AllTrue[Sqrt[8#+1], OddQ]&)], {n, 80}] (* Harvey P. Dale, Sep 15 2024 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Oct 04 2004
STATUS
approved