48967

Appears in sequences

• The number of distinct parts in the partition sequence lambda(n) formed by the recurrence lambda(1) = 1 and lambda(n+1) is the sum of lambda(n) and its conjugate.at n=32A064660
• G.f. satisfies: A(x) = G(x)*A(x^2*G(x)) where G(x) is the g.f. of the Motzkin numbers (A001006): G = (1 + x*G + x^2*G^2).at n=12A121399
• Number of (w,x,y,z) with all terms in {1,...,n} and w^2>=x^2+y^2+z^2.at n=25A212095