43822

Appears in sequences

• Number of partitions of n with difference -4 between the number of odd parts and the number of even parts, both counted without multiplicity.at n=50A242688
• n*a(n+1) = (2*n^2+2n-1)*a(n)+(n+1)*a(n-1); a(0)=1, a(1)=2.at n=6A259905
• a(1) = 0; and for n > 1, a(n) = 2*a(A285712(n)) + [0 == (n mod 3)].at n=30A292590
• Base-2 expansion of a(n) encodes the steps where numbers of the form 6k+5 are encountered when map x -> A252463(x) is iterated down to 1, starting from x=n.at n=60A292945
• Sum of the even parts in the partitions of n into 5 parts.at n=46A309547