27332956

Appears in sequences

• Number of (n + 1, n + 2)-core partitions into odd parts.at n=21A299293
• Number of order ideals of type e^(1)_n.at n=20A299295
• Expansion of g/(1 + x^2*g^4), where g = 1+x*g^3 is the g.f. of A001764.at n=12A391306