211242

Appears in sequences

• Expansion of Product_{m>=1} (1+q^m)^(-4).at n=40A022599
• McKay-Thompson series of class 24E for the Monster group.at n=40A112160
• Number of -6..6 arrays x(0..n-1) of n elements with zero sum and elements alternately strictly increasing and strictly decreasing.at n=6A200055
• Number of -n..n arrays x(0..6) of 7 elements with zero sum and elements alternately strictly increasing and strictly decreasing.at n=5A200061
• G.f. ( Chi(sqrt(x))^4 + Chi(-sqrt(x))^4 )/2, where Chi(x) = Product_{k >= 0} 1 + x^(2*k+1) is the g.f. of A000700.at n=20A366104