OFFSET
0,7
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..4000 (first 291 terms from Fausto A. C. Cariboni)
EXAMPLE
The a(9) = 3 strict partitions: (9), (621), (531). Missing are: (81), (72), (63), (54), (432).
MATHEMATICA
cobal[y_]:=Sum[(-1)^x, {x, Join@@Position[y, _?EvenQ]}];
Table[Length[Select[IntegerPartitions[n], cobal[#]===0&&UnsameQ@@#&]], {n, 0, 40}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Gus Wiseman, Mar 12 2018
EXTENSIONS
a(41)-a(58) from Alois P. Heinz, Mar 13 2018
STATUS
approved