OFFSET
0,5
EXAMPLE
a(7) counts these 5 partitions: 61, 421, 322, 3211, 22111; e.g., 421 has 2 even parts, and the multiplicity of 2 is 1, which is a part of 421.
MATHEMATICA
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 07 2014
STATUS
approved